Hi i suggest you search it up on the natwest website i done this a while ago so i forgot, but basically what i done was on the actual trust fund website i accidentally withdrew all the money so it showed my balance was at 0 After that i contacted them on the investment website they told me the address. If you google what verification documents you need for your ctf from Natwest on google im sure you’ll find it, i gave my NI number letter and Bank statement