Unacceptable DSTV Stream service

I am a Stream client with Multi Choice and pay my subscription monthly by EFT. There has not been a month that they do not disconnect my service stating that they did not receive my payment and insist that I. resend proof of payment I pay on the in the morning of the last day of the month and email via the banking app and separate email the proof of the payment, but still this problem continue. Stream can only be reached through the chat function on their app and while you attempt to resolve the matter, you are bombarded with Marketing info to reactivate Premium. Now you may be aware we all use DSTV for Sport only because all other programmes are repeats. You are the last resort. i am a pensioner and my wife and I are keen sports enthusiasts and this frustration is just about killing us.