Unfortunately you don't have a leg to stand on regarding verbal 'quotes' .
For a quote to be legal it must be written with a model number and a price.
It would be a entirely different story if the product was displayed in the shop with a model number and $199 price tag on it, and the shop refusing to sell the product to you at that price. If you took a photo of it, then you could show this to Consumer protection and be eligable for that price.
However, the marked price of the goods, as you stated, was $300. The shop is entitled to charge you whatever they want for the product (up to the marked value but not over).
It is a privalidge to recieve a discount, not a right.
Imagine this scenario: You are doing your grocery shopping. You have gone up to the check-out and the grand total came to $100, but the check-out girl working behind the till accidently said "that comes to $10", but then immediately corrected herself. Do you think you're entitled to walk away with your groceries for just $10?
No. And you wouldn't have a leg to stand on there either.
Stop being a winging customer and just pay what you're entitled to.
