Our client has a membership plan that offers a 3 Month membership but it has to stop for accounting reason by the 31st of August. So if it starts on the 10th of February, end date will be after 3 months on the 9th of May but if it starts on 10th of July it will be ending on the 31st of August. It seems unfair but their work this way.
Is this possible? I only know fixed or variable but not a mix of it.