Useless in every sense

The most pathetic service I have ever received. I had requested for a settlement statement days before the 25th of January 2020 and it was sent, I settled my account the very next day (21st January 2020) and sent in the proof of payment. I was called by a lady by the name of Faith requesting for the proof of payment again, I then sent her my bank statement, she said everything will be resolved after she receives my statement. On the 25th January there was a debit order from Mobicred. I called in to enquire and I was told they did not receive my POP whereas I had received an email stating they had received it. I then called into my bank and requested the POP which was sent and I sent it to Mobi. It's been 2 weeks and there's no feedback. I keep receiving emails stating that I will be contacted and I'm still waiting. Mobicred is the worst in every sense possible. I just want to be done with them already.