Lavalife sucks. Plain and simple. 50 credits does not divide by 6 credits that you pay each time you email someone. So you're left with the decision to abandon the 2 remaining credits or dish out some more. It's driven by the worst customer service available. One person will approve your ad, another will deny it - even if it is the exact same.

The do indeed have fake profiles designed to make you spend credits on such profiles. Talk to those who have worked there.