Ripped off by Interrent?

Contact your credit card company.

Send them all the documents & copies of your emails & let them sort it out.

They are usually pretty good with things like this.

Fairly common occurrence unfortunately.

Sorry for your experience. Do what Roland suggests. Internet, Goldcar and Europcar are the same gang of crooks. 

Uk law protects you tell the credit card company and ask (tell) them to refund under I think section 75 of the consumer credit act.

This is why you should always pay by credit card, only shady people avoid paying by credit card.

I term a credit card a payment protection card

Totally agree ..... Goldcar (also operate as Interent) are a bunch of crooks who will try all sorts of scare tactics to fleece money from the person hiring their cars. Also, make charges once the vehicle has been returned, stating that damage has occurred.

Filling in the Complaints book seems to have no effect. The only way to disrupt their business is to let as many people as possible,  know that they will be dealing with a company which encourages their employees to break the law.