Frame Overhanging Slab by 3inches and not attached to support bolts
That is not normal or acceptable workmanship. The correct response to a foundation that far out of specification is to require the foundation contractors to rip it out and try again, or not get paid. Clearly that point was missed.

The larger problem for you is that you are already entered into a contract with an incompetent, lying builder. I'd have your lawyer/solicitor review your options at this point according to the terms of your contract. I can't see a lot of hope for a happy outcome, unfortunately. And yes, call in inspectors, notify the bank, etc.