Question regarding gambling in England

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Does anyone know who I should contact regarding this issue:

Day 1a of WSOP europe is September 10th, 1b is the 11th, and they draw for seats on September 9th which means that all players must be registered by the 9th.

This means that if someone turns 18 on the 10th or 11th(in my case the 11th), they won't be able to play despite being of age when the tournament starts.

I contacted the people who run WSOP Europe, and they said that the governing body there is very strict regarding their gambling laws, but I was wondering if anyone knows how I could contact them/whether I could reasonably appeal this.