two months to gt an existing contract transferred

on the 10th of February I app**** to have my daughters Autopage contract added to my existing contract which has been with Autopage for the last SIXTEEN (16) years. I have never ever once has a problem with the debit order to pay them and my account has always been paid throughout all of the upgrades that I have done with them. To date (.04.2015) i have still not received confirmation or follow ups or notification why there has been a delay. I have visited the shop 6 times and once I sat there for 90 minutes. I asked what the problem was when I phoned the call centre and was told that the application had been processed incorrectly. the client services man told me that it would be corrected immediately but that was two weeks ago and still nothing has been done. What must I do??