Changing your call plan now could mean you lose some of the call extras you added earlier, as some of our call plans include them as standard. It's worth double checking to make sure you get what you want.
It’s easy to block any unwanted numbers on your phone. Each device will work differently, but usually sliding or holding the number down will bring up the option to block it.
However, some spam callers are crafty and might have more than one number to pester you with. If that happens, you can report them to the Information Commissioner’s Office (ICO) who will make things more difficult for them.