Urgent: Account Closure and Payment Confirmation Required

I am writing to formally raise a concern regarding my account with your company. Despite having paid my outstanding balance in full, I am still being informed that there is an amount owing on my account. i have then made another payment to get this closed and I have provided proof of payment multiple times, yet this matter remains unresolved.

I kindly request that you review my account immediately, acknowledge the payments made, and proceed to close the account as paid in full. Additionally, I require an official paid-up letter confirming that my account is settled and closed.

It is important that this issue is resolved promptly to avoid further inconvenience. Please confirm receipt of this communication and advise on the next steps.