Payment not allocated

I made a payment to Mobicred on the 17th of December 2021 added an extra 0 on the reference, I sent an email with pop for my payment to to be allocated, I made several calls, even sent whatsapp messages, they all tell me that they are forwarding my pop to accounts for allocation. It's now the 10th of January 2022 my payment is not yet allocated. Whenever I call they tell me that it will take seven days to reflect.. I have waited for 7 days twice but still my account is not updated. Terrible service I am receiving. I paid a lot of money on this account for it not to reflect