These gift cards are basically useless?

I received a couple $100 AMEX gift cards through my work for the holidays, and I’m having an extremely difficult time with them.

My first purchase on Amazon went through, then the second purchase was declined (same card, more than enough balance left).

I used the second $100 gift card to load into DoorDash. It said it wasn’t accepted at first but as I was typing everything in again it suddenly refreshed and went through. I was able to place one food order successfully. The second order a couple days later was declined, so I added it to Apple Wallet and made a DoorDash order and that worked. Then the third order, using the same card on Apple Pay, was declined.

It’s like these cards are only accepted one or two times if you’re lucky? I can’t make sense of it. How can I enjoy these? I’m going to try using them in person at Target tomorrow.

*EDIT / UPDATE *

For any future person reading this thread, u/OnlyBoot made a fantastic comment about removing the card number and then re-entering it on your apps any time you want to make a new order. THIS WORKS. DoorDash, Amazon, Apple Pay, etc… It’s a small hassle but at least you’ll be able to use your Amex gift cards beyond the first purchase.