MULTICHOICE/DSTV ONLINE PAYMENT STRUGGLE

I am on the compact plus option. I received an email to upgrade to premium for a month for same amount R599. My debit order then was deducted at the Premium levy of above R800. They extended it for another month and again deducted the higher premium. I then canceled the debit order and decided to rather pay online the correct amount. The instruction on the website for online states choose pre-approved beneficiary Multichoice for internet banking . There was only Multichoice Namibia which I chose. Apparently I should have chosen DSTV. I can not reverse as it was an internet payment. They wanted a proof of payment with bankstamp. Now they say the beneficiary account details are wrong and they can not transfer it to my DSTV account. It is a pre approved beneficiary so I do not get to choose. I sent numerous emails and stand in the queue twice to try to sort. If they check the banking details on the 28th of April, they will pick up the payment and can transfer to my account. I am not willing to lose themoney and pay again.