COS customer service email: expert guide for fast, effective resolution

Overview: when and why to email COS customer service

Contacting COS customer service by email is the best option for issues that require documentation—missing items, faulty garments, refund confirmations or VAT/invoice requests. Email leaves a timestamped record and lets you attach photos, invoices and tracking numbers. Typical use cases include damaged items received, incorrect sizes shipped, or requests for proof-of-purchase invoices for business expenses.

Expect a structured process: COS (the brand operated by H&M Group) routes customer emails into case management and assigns them to regional teams. In practice, many customers see an automated acknowledgment within minutes and a substantive reply within 24–72 hours. For complex cases (returns, refunds, customs queries) total resolution can take 7–21 calendar days depending on inbound shipping and finance processing.

How to find the correct COS contact channel

COS operates region-specific support channels rather than a single public inbox. Start at the official website: https://www.cosstores.com then choose your country/region and open the Help or Contact section. That page will either provide an online contact form, a live chat link, or region-specific phone numbers and opening hours. Using the country selector ensures your message reaches the correct logistics and returns hub.

If you need corporate-level or press contact information, COS and H&M Group list legal and corporate addresses—for example, H&M Hennes & Mauritz AB (parent company) is registered at Mäster Samuelsgatan 46, SE-106 38 Stockholm, Sweden. For most customer enquiries this is unnecessary; use the website contact form or store-specific numbers found in the Store Locator for faster service.

What to include in your email (critical checklist)

To get a fast, accurate response include specific identifiers and supporting evidence. A well-crafted, complete message reduces back-and-forth and speeds refunds or replacements. Below is the practical checklist to paste into your message or use as fields in the contact form.

• Order number and purchase date (format example: #12345678, placed 2025-04-12). If bought in-store, give receipt number, city and store name.
• Full name on order, delivery address (with postcode), and preferred email/phone for contact. If different, state billing address and VAT number if you need an invoice.
• SKU or product name, size and colour (COS SKU example: 0-XXXXX-XX). Provide quantity and exact issue (e.g., “missing button on left cuff”, “wrong size sent: M instead of S”).
• Photos: 3–5 clear images (one of the full product, two close-ups of defects, one of the packing slip). Attach as JPG or PNG, ideally under 3 MB each; filename should include the order number for quick cross-reference.
• Desired resolution: refund, replacement, repair or store credit. If refund, state preferred method (original payment, gift card) and whether you accept deductions for return postage (if applicable).

Sample email templates and phrasing (use & modify)

Below are concise templates you can copy-paste. Keep the tone factual and include the checklist items above. First, a missing item/mixed order example:

Subject: Missing item from order #12345678 — 1 x Wool Coat (Black, Size S)

Message: Hello COS team, I received order #12345678 on 2025-05-02. The parcel contained 1 knit jumper but the Wool Coat (black, size S) listed on the packing slip was missing. I have attached the packing slip image and a photo of the items received. Please advise whether you will ship the missing coat or issue a refund. My preferred resolution: replacement shipped to the delivery address below. Thank you — [Full name], [Phone], [Address].

Second, a faulty item/quality complaint example:

Subject: Faulty item — stitching defect on order #87654321

Message: Hello, I am requesting a refund or replacement for the COS Cotton Shirt (order #87654321, delivered 2025-04-28). After one wear and one wash per the care label, a seam has come undone at the side (photos attached). I would like a full refund to the original payment method. Receipt and photos attached. Please confirm return label and the expected refund timeframe. Regards, [Full name].

Timelines, refunds and returns — what to expect

COS return policies vary by country, but the common practice for online purchases is a return window of approximately 14–28 days from delivery for an exchange or a full refund—check your country’s Help pages for the exact number. Once COS receives a returned item, refunds are typically processed within 5–14 business days back to the original payment method; credit card refunds can take an additional 2–5 days to appear on your statement.

International orders will have additional customs and VAT considerations. If you require a VAT invoice for business purchase, ask specifically in your email and include your company name and VAT registration number. For lost parcels, provide tracking number and date; courier investigations commonly take 7–21 days.

Escalation steps and consumer rights

If initial email responses don’t resolve the problem within the stated timescale, escalate by replying with the original case reference and requesting priority handling. Include “Priority: Escalation — unresolved after X days” and attach previous correspondence. For EU and UK consumers: you have statutory rights such as the 14-day distance selling cancellation right (EU) and legal guarantees for goods to be as described and of satisfactory quality; reference these when applicable (e.g., “requesting remedy under the Consumer Rights Act/Distance Selling Regulations”).

As a last resort, use your bank’s chargeback process for non-delivery or persistent non-resolution (note time limits, usually 120 days), or contact your local consumer protection authority. Before taking those steps, document all emails, dates and names of representatives you spoke to; this documentation strengthens any formal complaint.

How do I contact Cos?

If you’d like help by phone, please call us toll free: +1 855 842 1818.

How do I email Armani customer service?

The completed form will be sent to our Customer Service who will respond as soon as possible. Alternatively, you can contact us at [email protected].

Do cos do refunds?

We will refund you by the same method you used to pay, within 14 days of your return.

How to check CoS email?

An AI Overview is not available for this searchCan’t generate an AI overview right now. Try again later.AI Overview To access your College of the Sequoias (COS) student email, you’ll need to log into MyGiant (formerly MySiskiyous) and then access your Office 365 account. You can find the “Mail” button within MyGiant to access your email.  Here’s a more detailed breakdown:

1. 1. Access MyGiant: Go to the MyGiant portal. You may need to log in using your Banner ID and PIN. 
2. 2. Locate the Mail Button: Once logged into MyGiant, find the red “Mail” button, usually located in the upper right corner. 
3. 3. Access Office 365: Click the “Mail” button to be directed to your Office 365 account, where your COS email is accessible. 

If you have trouble logging in or accessing your email, you can consult the Student Help Desk or utilize the password reset options available on the MyGiant portal. 

AI responses may include mistakes. Learn moreMyGiant – Portal Access – OutlookMyGiant – Portal Access. Log In to MyGiant. (formerly universal login) If you are not currently a student or employee at COS and o…OutlookStudent Email Support – Student Help DeskCollege of the Siskiyous(function(){
(this||self).Bqpk9e=function(f,d,n,e,k,p){var g=document.getElementById(f);if(g&&(g.offsetWidth!==0||g.offsetHeight!==0)){var l=g.querySelector(“div”),h=l.querySelector(“div”),a=0;f=Math.max(l.scrollWidth-l.offsetWidth,0);if(d>0&&(h=h.children,a=h[d].offsetLeft-h[0].offsetLeft,e)){for(var m=a=0;mShow more

How to email cos?

​Please feel free to contact our front office, and we will do our best to help you as soon as we can! Please leave a voicemail if there is not an immediate answer, as we check voicemails frequently. You can also email [email protected]​ to get ahold of our office.

How to get in touch with CoS?

If you’d like help by phone, please call us toll free: +1 855 842 1818.