DSTV cant calculate customers accounts

Good Day <br> <br> Every year when its time to make payment DSTV can never get the account correct. Agents are so useless that they cant calculate the annual account and gives wrong info. Then after holding on for 24 minutes they put the phone down????<br> <br> Really its such a simple transaction and yet they keep getting it wrong. Now after speaking to the second agent they don't know what happen to the decoder plan on my account...now really for the last few years I have been paying for it and surely it would reflect on the account. <br> <br> They surely need to put more skilled people in their company... this is unacceptable from DSTV<br> <br> Please can this be processed correctly and await your call for rectification <br> <br>