Poor system and service.....unprofessional service

I made an EFT of my monthly subscription on the 22nd of November and I even payed extra because I was not sure how much to pay, I called the call center to inform them of my payment and I even sent a proof of payment and the reconnected my channels but to my surprise a week later my channels were disconnected. I called again and they said I must send a proof of payment, I did that and they reconnected. A week later they were disconnected again, I called for the 3rd time now and they told me to do the same thing, send a proof of payment and I even got a response from them that they have recieved my payment and my account is upto date but to my surprise my channels were disconnected again a week later. I called again and they told me to send the proof of payment to both payments and unallocatedescal email, I did that and my channels were reconnected. Yesterday my channels wee disconnected again and now I don't know what to because I have wasted a lot of airtime now and I no longer have airtime to call them but the service I'm getting from multichoice is so so poor, their system is just ***why do I have to suffer for a service I'm paying for. This is not a free service multichoice