You will get charged the 7 day 'access fee' when you take a bike. You will not be charged the access fee again during the following 7 consecutive days. If you use the bikes again following those days you will be charged the access fee again.
Basically you get charged the access fee for each 7 day block of usage.
Then of course if you use a bike for more than 30mins at a time you'll be charged the relevant 'usage fee' unless you went to a stand that was full and claimed your 15min extension to get to another one
You will get charged the 7 day 'access fee' when you take a bike. You will not be charged the access fee again during the following 7 consecutive days. If you use the bikes again following those days you will be charged the access fee again.
Basically you get charged the access fee for each 7 day block of usage.
Then of course if you use a bike for more than 30mins at a time you'll be charged the relevant 'usage fee' unless you went to a stand that was full and claimed your 15min extension to get to another one