frustrated

i have been having trouble with my account balance for almost 5 months now. The decoder i am using belonged to my friend K Ndlovu and when she moved out of the flat which we shared together. she transferred this decoder ***9 to me in August 2015. then i paid the full amount of R320 plus other amounts which she had outstanding. in the middle of August my services s were disconnect and when i called customer care, i was told i owe R611 something. which i did not understand, i was then told that there's another decoder in my name starting with 100 something. it seemed when we requested change of ownership, they transferred all Ms K Ndlovu's decoders to me. the consultant i spoke too said he will put the other decoder starting with 100 as inactive because Ms Ndlovu is not using as we speak, then they reconnected me. end of August i paid r320 for September then in the midle of September my services were disconnected again, i called in again n they told me about a balance of r611 owing, i explained to the lady then she reconnected me. then end of September i paid for October then i registered for debit order and Month end of October they debited r611 from my account and they were mea