I have just switched from Ultimate Oomph to Ultimate Volt but was told I needed to ring O2 to get my mobile moved across (I think the guy called it a switch basket or something similar). The Virgin guy was unable to do it directly as I had an old inactive account with O2 associated with my email.
Who can I contact at O2 to do this without having to wade through lots of support guys who wont know how to do this and its critical I don't lose my phone number in any of this?