Why did Citi Bike charge me $100?

I'm curious to know why Citi Bike charged you $100. Did you perhaps exceed the time limit for your bike rental? Or was there some sort of damage to the bike that you rented? It's important to understand the specific reasons behind the charge so that you can take the appropriate steps to address it. If you haven't already, I recommend reaching out to Citi Bike customer support to inquire about the charge and see if there's anything that can be done to resolve the issue.