Important things were not communicated upfront. 1. Passport is needed 2. Credit card pin code is needed. The first issue was solved, by chance i had a photo of the passport. the 2nd issue was a surprise, I knew I had to bring my credit card and I did, after already paying online, however, they needed me to use my pin code and not just scan my card. I do not have the pin code and they had no fallback option so I was not able to get a car and had to make new plans. Clear communication upfront would help either getting ready for the rental process or make other plans IN TIME. I was unhappy to see no flexibility (I offered instead of a deposit, to actually pay that amount - even that wasn't an option)