Poor service

I am every disappointed with the service i received. I am also taking this matter to the costumer tribunal. On the 5 of May I got an sms from dstv telling me to pay 1030 which is due. I have the sms and I follow the link I paid On top of that i called to check if all is in order. They confirmed and reconnected my service. A month later they came and told me I short pay by 700. Now I owed them 2000. I called on the second and i was adviced to pay 1400 while the account department will come back to me. I did they reconnect two days after. Now they disconnect and demanding money while no one responded to my ticket. I lost 100 calling with no assistance. YOU CAN NOT ADVICE CUSTOMERS TO PAY CERTAIN AMOUNT THEN LATER YOU COME BACK AND SAY THEY SHORT PAY . WHILE THEY ACTED ON YOUR ADVANCE. YOU ALSO DO NOT WANT TO TAKE ACCOUNTABILITY.