I made reservation for uberEVENTS recently. They c...

I made reservation for uberEVENTS recently. They charged me 2.5% service fee ($200) based on the "maximum" amount expected. Within four hours I wanted to make a change. Their FAQ states:
"Once your order is completed, there is no way to update the details of your event."
This is the MOST OUTRAGEOUS policy I've ever seen in my entire life.
Its time, uber behaves like a real business!