People join without me approving them.

Storefront access is set to Public (open to everyone). Change it to Approval required.

I cannot see Join requests.

Reviewing requests needs a role that can manage customers. Owners, admins and managers also get an email for each request.

Your storefront access setting decides whether people who find you in the Timeo app become members at once, or send you a join request first.

Open Settings > Business and find the Public directory card.
Set Storefront access to Public (open to everyone), Approval required or Hidden (invite only).
Use Accepting new requests to pause new join requests for a while without hiding your listing.
Click Save changes.

Open Join requests (gyms: Requests > Join requests; salons, barbers and clinics: Messages > Join requests; other businesses: Inbox > Join requests). A badge shows how many are waiting.
Click View request to read the message and Questionnaire answers.
Click Approve. The person can book and buy packages straight away, and you can click Open profile.
Or click Reject, type a Reason of at least 3 characters and click Reject request. They will see the reason.

With Approval required, your listing shows an approval badge and people wait for you before they can buy.
With Hidden (invite only), you are not listed and people join only through your direct link.

People join without me approving them.: Storefront access is set to Public (open to everyone). Change it to Approval required.
I cannot see Join requests.: Reviewing requests needs a role that can manage customers. Owners, admins and managers also get an email for each request.