I am 17 years old and I have a UK child accompanied visa with my father's name written on it, saying that it is only valid if accompanied by my father.
But I am in the IMO team, which will take place this year in Bath, so I need to travel with my team and team leader to the UK without my father. Is it possible for me to get a consent form from my father that he authorizes my team leader to be the adult accompanying me? Will customs accept this?