So please read over everything carefully! Am I allowed to repost your content?.
You would get the rewards that were given for that period of time.
The tier I want to join is full :Unfortunately if the tier you're trying to sign up for is full, there is no way to get in at that particular time, however, new slots open up often so check back frequently if you're after one of the limited spots! Do you take cosplay requests? But you will not receive the next months rewards unless you re-pledge.
On my Patreon you will find month to month exclusive sets! There is a section in my Discord specifically for making cosplay suggestions.