He wants to use sport exchange and Betfair has largest exchange platform.
That's why he wants to stick with Betfair.
Exactly, it is not a good idea for we know that the regulation is not only for him and Betfair may not only focus on one player. Moreover, if it relates to Terms and Conditions including the regulations. That's why he wants to stick with Betfair.
I actually feel surprised why he must impose. Yes even though Betfair is a big site but it does not mean it must impose mainly because it is indeed related to T & C.
There are still many choices. If there are some easier sites, why should be on the site that exactly doesn't allow him
