Complaint Letter For Poor Customer Service by Missy Cannella Free Sample Complaint Letter For Poor Customer Service Template. DownloadRelated posts:Customer Service Operator Cover LetterCustomer Service Support Cover LetterCustomer Service Administrator Cover LetterCustomer Service Coordinator Cover LetterCustomer Service Complaint LetterCustomer Service Officer Cover LetterCustomer Service Clerk Cover LetterWe Would Like To Welcome You Back As A CustomerCustomer Service Sales Cover LetterComplaint Letter About Bad Customer Service