This is a well known trick, and one that is easy to fall for. You send a translation out for review by a third party or someone on staff, they respond that it is an absolutely horrible translation. The translation might be bad, but the reviewer might be trying to steal some business. Advice: wait two or three days, and see if the reviewer solicits you for the business by saying he has a colleague, buddy, girlfriend who can do the work. Big companies with sizable translation budgets should be especially wary of this trick.