Sometimes a plug can be damaged for various reasons. This is just a quick vid on how to change a UK 3-pin plug. A basic skill that almost everyone knew but now with all appliances coming with plugs, it's not a widely used skill anymore.
May be useful to you at some point.

Three in plug - https://amzn.to/2yiXRuq
Electrical Screwdriver - https://amzn.to/3ecpTHz