It is a waste of time to play there.
They will boot you if you bet on dogs.
The standard excuses for taking your bonus away include, but not limited to, the following:
a) "You already have an account at another book", eg. VIP.
b) "I do not like your plays since you do not bet on the `fair price'. Interpretation: fair price = inflated prices on fav.
c) "VIP's manager Joe told me that you were a wise guy".
By their logic, they only want someones who bet on the fav, who have no accounts at VIP or its relatives. But such bettors are very few. Good luck.