New upgrade big mistake

It seems the only way to get help from Cell c if I write to Hello Peter! I think this is the fifth time in two months. I upgraded my contract 7th March. I want to know when this takes effect. I spoken to two of your agents and was on hold for 25mins and I put down. I could really kick myself for taking up another upgrade with you people. And I have been a customer of yours for a couple of years now and your service is shocking and getting worse by the day. I will not by any means recommend any one to go with you people. Could someone get back to me on my upgrade and when it takes effect has I’m being charge again with my old contract. ***