Bad service and dishonesty

Bad service and dishonesty. I made an immediate payment of my premium on 2nd of May 2021 with an advance into June 2021. After l sent the proof of payment to their accounts department email (accounts@cartrack. co.za) as usual, again sent it to their WhatsApp and directly to one of their accounts department individual who called me. I have been getting none payment telephonic calls in May after payment and even in June. They are demanding a payment for June and May. I am told that they never received the money and I must pay the full amount mean the money paid beginning of May its free money into their account. I have spoken to different callers, whom I told them the same story and some very rude. Asked them to escalate the matter but nothing was done. This kind of nonsense affects my credit score for nothing. Its disgusting to be a member at this stage.