The telephone number 07963734544 is being used by scammers targeting UK residents. Recipients of a call from this number report receiving a phone call out of the blue. When they answer they are greeted by a message suggesting their National Insurance number has been suspended due to suspicious activity. They are then advised to press 1 so they can discuss the matter further.
Needless to say this is a scam. If you receive a phone call from 0793734544 then do not engage with the call. Hang Up. Delete the Number. Block.