I actually emailed them asking about the charge and told them I signed up using a code which I was under the impression that it waived the fee.
Their reply:
There is a $25 plus tax application fee to join the program. This covers the processing costs of retrieving each applicant’s driving record from the DMV. This amount is credited back in the form of a $50 driving credit for use in the CarShare program as well as a free rental day with participating National car rental locations.
The processing fee cannot be waived. If you would like to receive a refund, your Enterprise CarShare account can be closed and your card refunded. This would also void the Emerald Club points you accrued by participating in the original promotion. Simply call Member Services at the number listed below or reply to this email for more information.
Thank you and have a wonderful day.
Member Services
Enterprise CarShare
212-206-8555 office
212-206-8955 fax
info@enterprisecarshare.com
Enterprise CarShare Member Services
219 W. 77 Street
New York, NY 10024
enterprisecarshare.com