My grocery purchases that were setting off the travel credit were not also showing up on PYB. This makes sense. The same purchase shouldn't be credited twice.

Today I had two grocery expenses that totaled $150. $120 or so finished up the travel credit. But, both showed up on PYB.

My guess is they coded so that once you hit $300 all the grocery expensesthat post on or after that date are available to PYB to avoid trying to write even more code that tries to figure out what part of the purchase that put you over should be left to be redeemed.

The "double dip" here isn't great because the URP could be used in other ways, but if you haven't used your travel credit at all and need $305 in groceries it appears you can double dip. Of course YMMV as I am just speculating based on what has happened with my grocery purchases in the past and most recently for my CSR.