Recently in Paris we used the Velib bikes- great fun, but the terminals did not take US credit card as we do not have "chip and PIN". We were aware of this issue before we left and registered 2 weeks in advance. We had no problems when we got to Paris. We would love to do the Sevici bikes in Seville, but are we going to have the same problem with the credit card? I do not see the option of preregistering on the website.