Por service

Please I'm desperately seeking help, dstv keep deducting an I mk a eft as well cause cause they keep saying I short paid, wen I cal to cancel then I must pay R1600, I only had 2 week of viewing from tym I connected dstv, from late January, no 1 gets back to u wen you query, an wen u call the call centre u must pay more an dey can neva find your payment as its not being allocated yet, mind u by the 5 the of every month.... Please can someone help me