Originally Posted by radonc1

We need to be careful here.
The One Pay Debit card is issued by Coastal Bank, and basically is a reloadable debit card (i.e. not backed by any of the possessor's bank accounts, therefore similar to a BB card). You earn cash back for appropriate purchases at WM...i.e. no GCs or prescription drugs,,,I think they do allow OTC meds) and is limited to 3% back (max $150 spend a month). After that, the program is bupkis....0.1% back

...

So, to your interesting question
The reason for shut downs in Coastal One is the appearance of MLing activity. Will loading Coastal One and paying off Synchrony One with it be possible...yeah, but I have not used my Coastal One account for any BP. I shop at WM and spend less than $150/month there, so between cash withdrawals each time I shop and actual purchases, I am easily able to unload the card and it appears to WM and Coastal that I am a great customer. I also get 3% back at WM. Ce n'est pas mal.

There are plenty of DPs out there where paying bills, especially CC bills, raises the hackles of Coastal One. But even if that weren't the case, and presuming you qualify for the Synchrony One Cash account, you will be limited by your credit line,,,,and I honestly suspect that will be less than 4 digits in amount to start.

IMO, my Coastal One account isn't worth the 3% return risk (and remember Coastal has a very nice savings account program to boot) but to each their own. Let us all know how you fare in this adventure.