Another unhappy customer about this merchant charging 20% for cancellation. Unfortunately, our trip was cancelled due to pandemic. Cancellation policy on Tripadvisor site indicated full refund (this does not mean to me a future credit). Not wanting to be ripped off in Athens again, I had booked transportation with Welcome Pickups. Well, my bad experience dealing with Athens transport bit me again. We gave lots of notice and am sure the company was out very little for our cancellation. I will definitely not use them again and will not trust Tripadvisor either. Buyer beware.