In Teamup, there is a menu at the top-left. Tap on it and you should see a list of all calendars to which you have access. If any are greyed out, you can tap on them to make them visible. The screenshots are from an iPhone but Android should be similar.
When you join the club the Membership Secretary will send you your link for the Teamup calendar. It’s unique to you so please don’t share it.
To access the calendar you can either use the link in a web browser, or for better results download and install the Teamup Calendar app from the relevant app store.
If you lose the link or change your phone and need to add it to a new device, you can find out your unique link from your membership profile on the Membermojo website.