Poor customer service

I made my payment on time yet a few days later I receive calls and texts that I had missed a payment, after calling the contact center and sending POP I was still listed as payment missed, this caused a huge knock and sent me back on the plans I had since I needed m uh recorded updated. I was told by fezeka that her manager will call me back and my details taken yet I had not received any call, this was a no mistake on the company's end not my end since payment was done on time yet they could not take responsibility