Number ported without permission

I must say I am fuming after the disgusting and pushy service that I have had from MTN, first of all, you there was no stock of the phone that I wanted to take a contract out on, not even a demo model, the sales assistant was very pushy as have you been with the constant barrage of sms' s. I have not signed a contract YET and have a right to a cooling off period. Yesterday the assistant phoned me and and said that he wanted to Port my number and I told him no to wait until we had actually seen the phones. Guess what, last night the number was suddenly ported without my consent. This is ***** as who gave You and Him to do this, where is the supposed contract that I have signed?????? I now have no way of calling anybody because of this. I want my old number back immediately and without delay. If necessary I will get Simon Lapping and Wendy Knowler onboard. You had no right after I said no. The only permission I gave was for a credit check... Dealer code 319545.