This seems like a very good venture/initiative.
Tollz uses the cashback model from retailers and automatically provides the cash back into your toll account (Linkt) which helps you travel toll free. Here are the list of retailers:
Pasting from the website:
How it works
When you use the special Tollz online shopping links, or, connect your credit card to Tollz and shop at participating retailers in store – our technology automatically provides the cashback on offer through to the Linkt toll account details you provide!
No need to use special coupons
Works with existing credit card points programs
Better than discounts, you can save time - If you don’t use it, you don’t lose it
What's the bargain? How about you list the cashback rate for those retailers vs money you get from SB/CR?
Seems rates are worse overall so this just a rip off with the gimmick of cashback into your tolls with less premium of straight cash.