Number mess up on mobile

[#1]

So after nothing but mess up after mess up I upgraded to a handset deal on Tuesday got told I’d have a new sim with same number well the phone came today n at 9 pm my new sim activated only to find out I ended up with some 1elses number n they have mine so there receivein all my calls n text I’m expecting important phone calls and been told go to wait 3 to 4 working days for a new sim not even bothered all I got is it’s a easy mistake to make but after my bank details getting registered to another account n me charged there bill 2 week ago I duno Wat to do I wanna leave but been told got to pay early termination fee any advice

[#2]

Something's clearly gone awry here and this is clearly short of the high levels of service we'd like to provide.

I'd like to have a look into what's going on here and get things resolved for you as quickly and painlessly as possible. Could you please Private Message me with some details and I'll get things sorted?