Originally Posted by Davidxvx

Here's my suggestion to the OP: Go in, explain the situation, be friendly and polite, and just say you're not happy. If they're good, they'll apologise and sort you out. No loss to you. If they're bad, then they'll shrug and do nothing. Then, you can take it and leave, with no more loss. Or you can argue, burn some bridges, and maybe get what you want, but not want to go back - but if they won't accept their mistake, do you want to go back?