My Contract With O2

Here is a brief account of my problems with O2...

I took out a new contract in my name on 6th September 2008. I was previously with O2, but the contract was in my mother's name. Now I have turned 18 in December 2008 and so I wanted to transfer the contract into my name and not my mother's. I had this previous contract with my mother for about 3 years so I wanted to port my number over to my new contract. I gave the PAC code to the lady in the shop and was chuffed because it was all going smoothly.

Having phoned O2 about 12 times, and having had a number of assurances that it will be done in 48 hours, my phone number has not been ported over and I am extremely angry. I have now issued an ultimatum to them and if it is not done in 48 hours I will be canceling my contract, requesting both my money back for my new contract that has been taken by direct debit already, compensation for the inconvenience of having my number lost, and the money that is still being taken out of my mother's account through my previous contract.

When my previous phone number is called, it "cannot be recognised". They informed me I have to be transferred to pay as you go first, then transferred back to contract. I received a sim card and activated it for pay as you go. I have been waiting a week for it to be transferred to my new contract. I have phoned O2 this evening and they have no record of any porting occurring.

O2 are a complete shambles but I have to be with them because in my area they are the only network that has reception. Can anybody give me advice if they have been in a similar situation?