overcharged

I am so angry at dstv customer care, my DSTV have been off from last year I think October/November, seeing that I did not have a place of residence, and was living at my fathers house I could not connect the DSTV. So finally we got a place to stay and last month i phone in to ask what amount I must to connect the DSTV, it was R 500 and something rand, ok fine ask the lady if I am still on the lock compact package she said yes but told my PVR functions are not working, and she said it should be working, then called again to find out the same thing but then the call was cut, and when I called Saturday to find out why my account was R 699, the lady told me it is for the cancellation of the lock package so u said I did not cancel she said the system automatically cancel the packing because i did not pay , BUT MY QUESTION IS WHY DID DSTV NOT CANCEL MY LOCKED PACKAGE IN MARCH WHEN I CALLED TO FIND OUT WHAT I NEED TO PAY SO THAT MY DSTV CAN BE CONNECTED I MEAN R 230 FOR CANCELLATION IS ALOT TO PAY FOR PLUS THE MONTHLY SUBSCRIPTION FEE I MEAN R 700 this is day light *******. I must rather buy myself a OVHD where i just pay once off that amount really this is not on.