How do use Xbox gift card on iPhone on Minecraft PE?

Hi, which version of Minecraft PC is this?

Windows 10 edition Beta?

Minecraft PE: Windows Phone?

Minecraft PE: android?

Minecraft PE: iOS?

and what is the error codes you get when trying to sign in?

Also do you have the Xbox app installed on your device?

this is to a moderator/xbox staff member: (regarding xbox avatar store/marketplace)

instead of using a credit card as a payment option could i use an xbox gift card? say the gift card was $10.00. any time i bought an avatar prop the amount would be deducted from the $10.00, correct? once that amount is gone i'd get another gift card to
replace it? how do i know how much is left on the gift card?

I use my Xbox account to play Minecraft pe on my iphone (ios) lately whenever i try to play with friends or join a server it says i need to authenticate to xbox live. Ive tried almost everything to fix the problem and nothing has worked. Please Fix this
problem soon

thank you.

Thx

Are you referring to a gift card? If a currency card is different, how would I go about doing that? I cannot use the $40 gift card I redeemed to buy more gift cards.

Not any of the game passes. Planning on buying minecraft and its such a hassle for me to process a card so im using online shops to buy gift cards and we dont have gift cards for my region so im buying US xbox gift cards to buy minecraft. I already got 5 usd in my account, I'm asking because I don't wanna buy the app if I can't use it when I revert my region. Thanks for the response