While 5Dimes is the best book for US players IMO, they also have some of the worst bonus programs in the industry. Most just take the reduced juice option instead anyway. I dont even think about asking for bonuses when I deposit there because i know I get a bonus everyday by the unmatched amount of wagering options and their juice on soccer, tennis, boxing, etc is by far lower than any other US book, so that's a bonus in itself.
On a different note, as soon as I read "my wife deposited" that just sounds fishy right off the bat. I dont know one woman who would ever think to deposit at an offshore book. Now by itself that fact doesnt prove anything, but then you go on to say you had to gamble "behind her back the next day". Why would you have to hide it? didnt she just do the same exact thing the day before? So the whole thing sounds fishy. With that said, if the "wife" didnt take a bonus on her initial deposit then I dont see why you just cant close her acct and then they should honor bonuses on your acct. If "she" did take a bonus on her deposit than your shit out of luck trying to get a bonus on your acct as her acct got first bit of the apple. Or why not just play through her acct? Oh right, she doesnt know you play
Ask to speak with CS mgr Rommel on live chat. He's very accommodating and if he wont help you out then that's that.