All coinbycall phone numbers have been banned on the EE (Everything Everywhere) Network in the UK.

I questioned them on twitter and they said it was a service they didn't support.

http://www.freebitcoingiveaway.co.uk/coinbycall-uk-numbers-barred-by-orange-t-mobile-and-everything-everywhere-networks/

coinbycall - is there anything you can do about this?

Can we get new UK Numbers? EE is the largest mobile network.