The supplier said we booked with cheap price the service should be like this

ERSIRENT at London Heathrow Airport (KV) took advantage of the language barrier. Despite repeatedly showing the printed statement from the rental service about not needing additional insurance, and stating in English 'I have all cover, no need other cover!', the staff didn't mention the £1250 deposit option. When I repeatedly confirmed if the three charges were all deposits, I got a confirmed response that 'ALL will come back to me.' However, when I returned the car, the staff said this was a charge and wouldn’t be refunded. They maliciously upsold the insurance. Essentially, I rented a car and ended up with two full insurance policies, costing me significantly more than usual. This has caused me substantial financial and mental distress. Customer service is handling it, and I hope for a good outcome.

An additional insurance fee was added.

Acceptable. One key reminder is that unlike renting cars in the US, here the primary driver's credit card is required for the deposit, irrespective of whose card is used for payment. We overlooked this requirement and ended up having to buy full insurance on the spot for nearly £300.

Absolutely the worst car rental company, I have seen so far. We went in there and were ushered to use a Kiosk. The kiosk goes all the way until you go the option of buying additional option. If you select, no additional insurance, it asks to go back to the desk. The whole 15 mins process after a long flight was terrible. The person at the desk was rude. He again tried to sell us insurance telling us terrible catalyst converter theft happening in London. I had a California and a UK driving license. I scanned the UK one on kiosk. He said that I cannot use it since I am not a native in UK anymore and cannot switched to California driving license as I had already scanned it. Refused to give me car. I would suggest everyone to be think twice and think again before using Easirent. I ended up renting for a reputable international car hire company for almost the same price but with much better customer service.

Great value for money so no complaints other then sometimes the cars are not cleaned properly.