Before I create the detailed, professional HTML text you requested, I need one clarification to ensure accuracy: do you mean “Merrick” as in Merrick Bank (credit cards and banking services) or Merrick Pet Care / Merrick Pet Foods (pet food brand)? Each has different customer-service phone numbers, addresses, websites, hours, and processes. Reply with “Bank” or “Pet” and I will produce the full 600+ word, expert HTML text with precise contact guidance, phone numbers, websites, hours, escalation steps, and practical details.