Frsutrated and sad

I have a huge issue with this company. I had an issue with my decoder and then decided to use my partner as it was inactive and we went to DSTV in N1 city to do the change of ownership an link my addtional line ( which my second line is still not working)before I made a payment i went to DSTV whatsapp to check my balance I received an amount of R800.19 I then contacted the call centre to find out why my bill is R800.19 then a lady advised me to pay R405 for current month and end of August I am to pay the R800.19 which I was good with and then last week I received an sms to advise me my outstanding bill is R2332.19 I contacted DSTV to find out what is happening and I am yet to get a straight on what they will do and and why has the bill changed from R800.19 to this amount. I am frsutrated as hell with this company.