He's talking about Sportingbet.com, boys, not the Costa Rican based SportingbetUSA.com and all its sister books. Sportingbet.com is operated in a completely different manner than the other ones.
To the best of my knowledge, Sportingbet.com does not impose the regular "audits" that you hear about at the SportingbetUSA / sister books. You will be paid, almost certainly without much trouble.
I wouldn't count on maintaining very high betting limits though, especially if your bets are somewhat "sharp". If that's a major factor, I might look elsewhere.