Based on the screenshot, it appears the rates will be less when enabling surcharging; I'm a bit confused about what you mean. If you believe your rates were raised, you can call support and ask for a rate review.
The following articles below list more information about this surcharge product.
Credit Card Surcharging FAQ
Get Started With Credit Card Surcharging
Robert Anderson, Community Manager
Toast
Check out the new support page!
https://support.toasttab.com
