Where I could continue to ride and jump in London

Hello, everybody. I live in West Ham, East London and I'd like to find an equestrian club where I could continue my riding because I lived in Bulgaria nad I am in England 1 week. So my question is "Can you tell my a place in East London where I can ride and jump; And can I work (groom horses, feed them, etc. ) and in return this to ride? "
Thank you

That is awfully specific. You may be better off posting on a more local board.

It's probably worth ringing around all the riding places and asking yourself. Many places won't let a new person just do work in exchange for riding, but after you've taken lessons for a while that might be an option.