"Use Credit" button

I'm thinking that it's difficult for people who have received different Nitro tiers as gift, but they don't have a payment method assigned, therefore they can only use the first tier they have gotten, and has to either purchase another version's subscription OR receive another gift in order to activate that subscription. For me, I accidentally cancelled my subscription plan, making 2 months of nitro and one month of Nitro Classic inaccessible, and that's a pretty annoying thing to see the nitro credit be there, but unable to be used. TL;DR: Will it be a good idea for Discord to implement a button that "Uses Nitro Credit" to add your date,? Or to enable Nitro by will, and it would be great for people who doesn't have a payment method, but has credits that they can't use.

Edit reason: some grammar things and title change