fas REWARDS‪®‬ 17+

I am sure that I’ve been able to do this in the past, but I’m unable to recall how I did it. I need to merge a card’s points over to my account (from a card that isn’t registered to another account). I only have the secondary card because I had thought I lost the previous one, but I was mistaken. Please help me. Thanks for your time and cooperation

This is the worst app ever!
I shop here all the time. Once in a blue moon it will say I have points. But it will never let me use them.
I show the counter person and all they do is shrug there shoulders like they don’t know. No one can do anything about it so it just resets every time I use the card. I can never use the points. Over the time of having my points like at first I’d be able to use it like first day ever of having it. But then I haven’t been able to use the points for years now. And I can’t even use the load button. For the fuel and the cash. They don’t work. Everything is just wasted!
Probably millions of points wasted over the time of having this. Y’all owe me free gas for life. Cause this is not fair at all.

I keeps kicking me off the app claiming error. Even after my thumbprint, email address, and password. I’ve used it twice. Both times I had to use a different email address and start the process over from the beginning. Once I used the free $5 credit. The app no longer worked for my second purchase. Nor would it allow me to link the Fasrewards card to the app, so I wouldn’t need the app if there was a system error. What’s the use of downloading a app that’s only good for one use? Is the app secretly storing my phone’s information? If I enter my information. It claims that the user already exists but it won’t allow me entry.