Hidden fees, dishonest, terrible!

Do not rent a car with Easirent
My terrible experience begun from the pick up of the rental, once I had a debit card, not a credit card, they would only proceed with the rental if I bought the most expensive insurance of the rental(over 22GBP/day), that almost doubled the final price. Reason? company policies... Booking with another company was no longer a option due time, well, I paid it. Funny thing, it was written in those small unreadable letters in my booking, almost thought it was fair.
Then comes the fuel... the only option you have is to buy fuel from them from a random price, and returning it empty or losing your fuel leftovers. You can not pick it full and return full due company policies...
Now comes the worse...
I picked the car at 8pm, and returned at the same time, staff argued that my original booking was at 5pm via a third part website, and thus couldn't change it, charging me 40GBP as late delivery charge. This same situation happened before with me in Europcar and they didn't even consider charging me any fee once the real pick up time was in the booking, not the website one.
I feel robbed in many ways, how a unfair late delivery fee of 3h could be priced almost 2 full days fee of my rental?
Further more, one employee collected the check list paper(my yellow document) from my hand after him and I had already signed it, added information of time of delivery, and ordered other staff to re-scan the document. This is simply illegal to add information in a paper after I signed without my consent.
I intend no legal action for a 40GPB unfair fee, but fully intend to expose my experience. Have a nice life!