account keeps on being suspended

I installed dstv on the 29th of December 2014 and paid R295 on the 30th at pep cell southgate mall . On the 22nd of January 2015 my services where suspended. I was required to pay R68 .00 of which I didn't understand for what becouse it was not the 28th yet . I paid that amount and my services where activated . Again on 25th it was suspended this time I owed R59.00 .I called the call centre and the lady assisted me . Again today on 28th my account is suspended and an told that I owe R345 . I am really not happy with the service that am getting from multichoice as a new user . they must really do something about the service that they giving their customers . I can't pay multi choice every week .