Overpriced Car Alarm

[ell1]

Hi, i was just wondering if anyone could give me any advice?

last week I purchased a car alarm and installation of it from a company online, they told me the total cost would be £200. I agreed to this (stupidly unaware of what I was actually paying for).
When the car alarm was delivered I looked it up online and was really shocked to discover that it was for sale on other sites for £39. Which meant I was paying £160 for installation only.
On the companys website it states as a guide price to fit a basic car alarm would be around £80.
I emailed the seller straight away and said I was not happy about this and wanted a refund, but the replies I got back where all just downright rude and unhelpful. he is now saying I will have to pay the £60 deposit, which he never mentioned before.
The money has already been taken from my card, so I dont know what to do really?
I feel he was very misleading in what he sold me, does anyone think I have a chance of getting all my money back?

As you purchased online and have not yet received the goods you are entitled to cancel your order. If the seller refuses to refund your money you should contact your credit card provider. Alternatively you can take action against the company using the small claims track.

Because you purchased online you have a cooling off period of 7 working days from the receipt of the goods. You need to provide a letter of cancellation in writing. Read this website.

If they refuse to refund the money you should report the company to trading standards and also contact your credit card company.