Wake up, RCS!!!

I was in arrears with my RCS card and each time they phoned me, I told them that I had sold my house and couldn't give them an exact date as to when I could pay as I was waiting for my money to come through. They hounded me! I got no less than 8 calls a day. Then, when I received money, they were the first to be paid (1 November 2023), however, I am now continuing to receive messages that they are still awaiting payment. I tried to contact them and went through to an automated system. After trying unsuccessfully to actually get hold of anyone, I sent an email to them telling them that I had paid and if someone could get hold of me in this regard .... I am still waiting for the phone call. I then managed to find an email address on their website and sent them the proof of payment, however, I am still getting messages that they are awaiting payment. I am so sick and tired of trying to get hold of anyone there. Please could someone phone me or look at the damn emails to see the proof of payment.