PLEASE ANSWER OUR QUESTION!!

I am very disappointed in your service. I wanted to upgrade my contract 2 months earlier. I spoke to one of the consultant over the customer helpline and they told me I can upgrade by means of migration. I am willing to pay a penalty, but nobody can answer my question of how much the amount will be. After I sat at the shop for more than an hour, the store told me they will find out and call me. They phoned me this afternoon and told me they can only tell me what the amount will be after they have switch the contract.