Simcard change done And sim not activated

I did a sim card change on Saturday Afternoon 15th August. To date now 15h00 21st August the sim is still not activated. This is a contract that i have had for approximately 7 years now And no matter how many times I phone them about the activation They just tell me they will come back to me or they are waiting for their supervisor as the problem is at their Head office or somewhere else to to be activated. I have spoken to various persons over the phone and have also gone into the shop twice as well to try to get this activated. This is a contract that I will be billed for even If i can not use the service. <br> I have inserted my cell number below But this number is not activated for the last 6 Days. Will be a week to-morrow without any service at all