If you look at the pic of my recent quote from this company, a couple of things stand out. Total Rental Price is GBP 46.00 and "No Hidden Extras". Surprise, surprise on triple -checking it turns out that they were planning to levy an additional GBP 35 because it is a one-way rental. Now it states right thre on the quote that this is a one-way rental, and that the TOTAL price will be GBP 46.

But then there is that 'important information' link; what does it have to say on the subject?

Under "What's not included?" there is a line "One-way rental charges where applicable". And there are 2 lines under Delivery and collection/one-way rentals: "One way rental could be on a request bases with the supplier." (Whatever THAT means!) and "There could be a one way rental charge depending on the location and the supplier."

But obviously not in my case right, I mean they know my location and supplier and the TOTAL price is GBP 46.

So if this doesn't qualify as a hidden extra, what would exactly? Don't give these people your business, it will only encourage them.