Bad service of monthly disconnection

I don't know really now this is a month to month thing, I called center checking my package and payment they say I'm on 30 rand advance now they close my connection I'm owing, what is happening why do I have to struggle with Dstv monthly, arrears re from where I have been n watching a package for 30 Rands, can my service be re connected please every time I under go this stress, please check my last call with your agent last month