Move back down. There is nothing wrong with playing in the division that is consistent with your rating. In fact, I think it's ridiculous for people with low ratings to play in a division where they don't belong.
The rationalizations that are given - like "I want to play against better competition" - are nonsense. You should earn the right to play against better players in a sanctioned tournament. That's your motivation - get a higher rating by playing better when there is something on the line, and then you can play at the next level. Play with really good players in a casual round or in some local doubles if that helps you.
I'd like to see a system where your rating dictates which division you are allowed to play in. Don't have a rating? Have qualifying tournaments in which the top 2-3 get a paid entry in the open division of the next sanctioned tournament, the next 4-5 get a paid entry into the advanced division, and so on. Everyone else establishes a rating which slots them into tournaments going forward.
People who play in open with sub-950 ratings or advanced with sub-900 ratings ought to be embarrassed. It's no different than the guy years ago who schemed his way into a US Open qualifier by reporting bogus scores in order to achieve the 1.4 handicap index required to enter, then shot over 100 in the qualifying round - what a tool.
You think the top players want some guy rated 100 points lower than them playing on their card - probably not. And, if our sport ever got to the point where there is serious money on the line like on the PGA tour? Then there's no way anyone but the very best would be able to play in that division.
Too much entitlement in this game, mainly under the guise of wanting to "grow the sport". That's disingenuos - people want what's best for them.
/rant