Vodacom upgrades

I have just recently upgraded my iPhone with Vodacom, and my Apple Watch cellular is not working with my original number, Not one agent has been able to assist with activating my one number, previous to this my phone and watch has been in sync, and its vitally important that my electronics all work together. I have been to various Vodacom stores, called the call centre numerous times, I even went to Apple, they advise that only Vodacom will be helpful in this area.... to date I still have not found anyone to assist.. this is the poor service we unfortunately get. they will need to better train their staff so that they can keep up with new technology, and the best part! we cant get out of a contract once its signed... pathetic!