Paid on time but still service is suspended after multiple interaction with your call centre

My paydate for dstv account is the 15th of every month. all along i've been paying via fnb app. on the 15th March i logged onto the self service to check how much to pay and it said R506. i then paid R550. on the 20th March i got an sms saying my service will be suspended because the account is overdue. I called multichoice call centre and emailed proof of payment, however, the morning of the 21st March the service was suspended. i called twice that day and finally reconnected. i was told i would not be charged for the reactivation of the 2 decoders, and that the amount i paid is in unallocated funds at the billing department. 5 days later, today the 26th March, i wake up and my service has been suspended again. when i check the transaction history i still dont see the R550 i paid all i'm seeing is penalty fees. this is so frustrating. i just called your call centre again now for the 4th time and was given a case ID. my problem is that multichoice billing are *********** and now i'm being penalized and inconvenienced for their incompetence.