Merging my iCloud account with another icloud account
How do I merge my iCloud account with my husband’s iCloud account family plan? He sent me an invitation to join but when I go to activate it, i get told that I already have an icloud account and would I like to join my husbands account. The only choice I have is to click “Join new family”. When I tap that, I get a message saying “only the organizer can disband a family”. What does this mean? How do I get around it?
iPhone 5s, iOS 12