[Question] Can ‘donations’ to EAG be tax deductible?

I am attending EAG for the first time (in London) and I made a £400 ‘donation’ as recommended for the registration. However, it looks like this is not tax deductible.

  1. Am I correct that this is not tax deductible?

  2. If it is tax deductible, let me know what I should do to correct things!

  3. If it is not tax deductible, is there a way for it to become tax deductible? E.g. some way of donating to EA Infrastructure Funds, ear-marking it for EAG conferences.

As always, if this is explained somewhere else already, let me know. I tried searching but did not find anything.

Photo of jar of coins in preview image is by Josh Appel on Unsplash