I have been trying to buy "happy cards" to take advantage of gift card promos and have run into issues.
Here are my experiences, I was hoping people would have insight, or suggested workarounds. I have had these happy cards for a while and they have balances

At Noodles and Company when I swipe a happy card for food it works fine but when I try to buy a gift card I get asked for an account number and the happy card number does not work.

At Panera when I swipe a happy card in order to purchase a gift card I just get an error. I have asked the cashier to key in the number as credit but both times I tried the cashier told me they got gift cards not allowed errors.

On another thread folks suggested using them at the cheesecake factory for free slices with a gift card purchase but that doesn't interest me

Any suggestions would be greatly appreciated.