On Tue, Apr 14, 2020 at 09:34 PM, I wrote:
Having looked at your group...
... a bit further I found a thread suggesting that either (a) there is another person with the same name as you in the group, or (b) you have a second membership yourself.
I suspect that one of those memberships is an owner, and the other is an ordinary member, in which case the responses from Frances and Duane apply.
Chris