Pathetic Service , Consultants telling me to read my T&C's where I have my contract for 2 years and never experienced this before and this month is my last payment

I do not even know where to start ,I have an issue with my bill so I called the call centre a female by the name of Nokhutula answered I asked her to explain to me and she tells me go and read the T&Cs, and put me through to a supervisor and she was just rude it is so much to right down about her attitude ,I held on the line for 25 mins ,tried again and call was dropped tried again call was dropped, I have all the exact times the calls were made for prove and 100% all calls are recorded and you can retrieve calls from you telephony dept not sure but I'm guessing GLOCELL have Avaya phones..............................all I ask for is a team leader or supervisor to contact me..............im sure that can not be that difficult because if im going to keep calling and not getting a solution with GLOCELL will they reimburse me