Cannot upgrade and noone is willing to help

I have tried to upgrade my telkom contract in which i filled in my form ,literally four weeks ago, up until this date i have no response. A comparison when i upgraded with vodacom this year it took a min instore yet telkommobile refuses to even respond. Cellc in September this year was doing an instant upgrade for me over the phone yet i rejected it because i wanted to upgrade telkom yet im sitting regretting my choices. The past 2years i have never missed a payment i was meticulous in the way i dealt with this contract ,however i get nothing in return, if they do not want to award me an upgrade then why when i call the call centre to expand my limit its done without question. I need answers which noone is willing to provide. The run around by telkom is tedious in nature, us clients are treated so inferior once we have a contract with them , even the call centre cannot help me , now i do not have time to keep running back and fourth to the store solely because i am getting no response.