If you are enjoying your rental and would like to keep the bike for a longer time period, you can request a new drop-off date. If the Lister approves, the rental will automatically update and Spinlister will charge the credit card on file for the additional cost of the rental.
If the Lister doesn't reply or declines, you must return the bike at the previously agreed upon time. There are late fees that will be applied to delayed returns.