Complex sentence: Since he only got a one month work permit in England, he had to appeal twice and worked as a minor in order to stay in England while while playing as an amateur for Bristol Rovers 3rd team in the Western League.
Split into simpler sentences: Since he only got a one month work permit in England, he had to appeal twice to extend his work permit. He finally worked as a minor in order to stay in England while while playing as an amateur for Bristol Rovers 3rd team in the Western League.