Could my membership fee be downsize to $10 from $25?.

Yes. When I went to the $20 plan from the $10, I asked the worker if I was no longer interested in the 20 may I go back to my original $10 plan and he said yes.

Not sure call or stop by and ask.

Yes

It can be downsized to 12.00 if you have bluecross you can get your membership free