RCS, Money *******, lots of promises, no ACTION

On 11-5-22 at 15h28 I phoned RCS after receiving calls and SMS that I must pay my account that is in arrears. I finished paying my account on 30-3-22. I spoke to a gentleman called Rick, who confirmed that my balance is ZERO, and he promised me that I will receive a letter stating that I do not owe RCS anything. Today 1705-22 I have not received anything, except another bunch of SMS's and another phone call. RCS, you say that all your calls are recorded, please listen to the call that I made on 11-05-2022 at 15h28 WITH Rick, and action it. This is now my second review in less than a week due to no feedback. Absolutely disgusting customer services!!!!!