One payment of Ksh 500. You get the invite link as soon as it clears.
This is the number that gets let into the group, so give the one you use on WhatsApp. A request from any other number is not approved.
Your invite link is emailed here, so check it for typos. If it does not arrive, look in your spam folder.
We keep your number and email only to give you access and to help you if something goes wrong. Ask us any time to delete them.