I think the wolf-pack should back off and leave it to the people in green . . .
and HornyBunny (??) should face the reality of the pay-site system, and stop trying to save the six quid.
If you want a joint account and it means paying - weigh the option and decide whether it's a price you're willing to pay.
If Immy (???) wants to be a full members - the same applies. At a different rate.
If HornyBunny and Immy want a couples account and a single account too - the options are there. Even if it means paying the six quid to upgrade/change an old singles account to an all new singing and dancing couples account.
Somewhere along the line it'll cost £.