They are pretty cheap at Walmart, here

You could try emailing BT? Or giving them a ring might be better.

Dice Kid wrote:

my landline number lol i just have the phone if that makes any sense haha

Didn't you say you DON'T have a phone?

Huh? You have a line but no phone? Or you have a phone but no line? If you have a line but no phone borrow your neighbor's phone and ring your mobile. It'll display the calling number.