This is just me...but I most certainly would NOT drop it. They've been dishonest with you & taken your money & time...not to mention all the training & other issues you mentioned.

What a load of crap. I would make copies of that printout & fax it to them about 100 times demanding, at a very minimum, my money be returned.

I'm sorry for your troubles. Don't feed their donkey...be a pain in their a**, it'll make you feel better.