Usually there is no problem moving numbers from one provider to another , provided there is no change of address involved ( so the address will match on the losing provider and gaining provider ) you need to make the requirement to port the existing number known when you raise your order …there is no absolute guarantee , but generally speaking the number is portable from one provider to another .
Beats me why you are so keen on going back the provider you had before Virgin , if they can’t arrange something as commonplace as porting the number from VM but you obviously have your reasons, but if TT won’t port the number , and the number is sufficiently important, you simply choose someone that will
