My monthly phone contract is over and I have opted for a sim only deal to pay on a monthly basis.
When I filled in my details it seemed that I could keep my old number because I was an iD customer. After reading articles I am no longer sure... do I need to do something to keep my current number when my new Sim arrives?
Do I need to cancel my original monthly phone contract? If so how do I do that? I don't want to get caught out and not have an active plan if I cancel but don't have my new Sim yet.