My payment not posted to my account

On 2/19/

25 I made an electronic payment from my checking account to your representative on the phone that was not posted to my account. I have made about 25 calls in the 7 weeks. Provided the confirmation code given to me when the payment went through. You opened an investigative ticket, we have uploaded a copy of the check, we did a 3 way call with our bank who verified payment. In the 7 weeks, you have shut my service off 9 times and are charging deactivation fees and late fees, which we would not owe if you had credited the correct account with the payment. We would love to send the front and back of the check to you again, but the emails your representatives tell me are being sent never are. No one is investigating this. We have been hung up on, harrassed by your overseas employees, and argued with. I have been a customer of yours since the 90’s. I went to the store and she could not help me. Is this how you treat your loyal customers? They refuse to allow me to speak to a supervisor on the phone. My call this morning was 2 hours and 44 minutes, accomplished nothing and my service was shut off again this afternoon. How can we get this resolved?