Can you exchange Gift-Cards in Devex?

Quick question because I haven’t been able to find the answer by surfing the MANY posts about DevEx. If you show proof of commission payment in the form of Roblox Gift Cards, does it count as transferrable Robux?
I’ve seen that if the source of your Robux is ambiguous then it’d help to send in an email to DevEx support to clarify things, but would they allow gift-cards if they were given to you as payment from a client?

why use gift cards if you mean to devex, you are going to lose a % of the cards worth when you do get around to devexing even if it did work, just accept gift cards for other platforms like Amazon or just Vanilla Visa if you want to use it off Roblox, if you plan to buy gamepasses and avatar items, then se Roblox gift cards.

Can you clarify what you mean by gift card payment? Do you mean using the card to put Robux onto your account?

Note that you would lose so much money over roblox tax (literally a lot), direct payment would be way better.
EDIT: 1,000 robux equals to $3,5 via DexEx, while worth around $10 for the card itself.