In the FAQ on Moving from YahooGroups.
5. How do I promote my group to Premium?
In Admin, choose +Upgrade
?
Or go to:
?
https://YOURGROUP.groups.io/g/main/billing
(substitute your group name)
Sorry, I don't know whether you can pay by debit card or PayPal. Anyone?
Frances
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FAQ on Moving from YahooGroups/g/GroupManagersForum/wiki
/static/helpMore help: use the search button at the top of the Messages list.