Gift cards

I just had the same customer come in with a gift(?) card for the second time looking to deposit money on to it. Both times we told him we needed a bar code, possibly from an app like chime or cash app. Both times he claimed he went to a different dollar general nearby and had it done there.

I just want some clarification, do certain DGs not need the bar code/only need a card to make a deposit? If there are ones that accept it, how do you do it?