Since memberships are a part of subscriptions and are a subscription product, you can always customize the billing information and everything else by going to the setting of subscriptions.
So, if you first want to check out how many subscribers you have and check out their status, go to subscriptions > subscriptions.
There should be a list of subscribers if you have ones which will look like this:
If you click on the subscriber, settings of the subscription will appear which you can customize to your liking.
You can add discounts or coupons, you can customize the subscriptions actions, and you can even cancel the subscription if you want.
Aside from this, you can always customize the subscription options in great details if you want as well.
To do it, go ahead and go to settings >online store > subscriptions.
The window should be something like this:
You have different options to choose from like:
You can customize the options depending on what you want and on which option you choose from.
These will help you define the data of the subscription product (in this case membership) and customize it depending on your needs.
After you choose everything you want, you click on “save changes”, and you’ll be done.