Something you probably didn't know about Plusnet mobile I switched from Plusnet mobile to another provider to get a better deal and, natuarlly, kept my phone number. When I switched my account was in credit but Plusnet have refused to refund the credit balance because I kept my phone number when I left. Their operator said that they will not refund an outstanding credit balance if you retain your phone number, only if you abandon your phone number. She also claimed that it is in their terms and conditions and that I was told when I signed up. It may or may not be buried somewhere in their terms and conditions but I certainly wasn't told when I signed up, nor was I told when I asked for a PAC code. If I had known when I signed up that they don't give refunds I would never have signed up.