Account region messed up: can't buy any game in my local currency (BRL)

Hey there Batista!

apologies, but I'm not too sure what you mean by showing the full price instead of the Gold Membership price, could you enlighten us so we can better assist you? If you're referring to getting discounts for being a Gold Member, you don't get any discounts
for being a Gold Member except for the "Games with Gold" and promotional offers.

I'm mean the "Games with gold" here.

I've addressed this issue to xbox live support, it looks there is a problem with the subscription locale.

Hello GustavoRS14,

Since you do not have a BRL Microsoft Payment Account for us to deposit currency into, we cannot complete a deposit. We can only deposit into Microsoft Payment Accounts that have a currency that matches your Rewards Account's local currency (BRL). We cannot
deposit into other payment accounts like Credit Cards or PayPal accounts or Microsoft Payment Account of a different currency, like USD. This was mentioned in the FAQ:

How do I make sure my Microsoft account is properly set up to receive Xbox Live Rewards deposits?

In order to receive deposits in the form of your country's local currency, your Microsoft account must be transitioned to currency. As long as you have a billing address on file in your account,
you simply need to redeem an Xbox gift card, a Microsoft Points card, or a Microsoft Points code with your Microsoft account to begin your account transition.

your account region doesn't change with redemption codes

are you buying the right codes?

xbox gift cards are region locked meaning if you buy us gift codes they only work on us accounts

if you have a Germany account region but buying us or uk codes that wont work iut will cause a us or uk billing account

you have to buy currency cards based on your account region and actual region

so if you are buying us currency cards but have Germany billing address you are causing a split billing where the us currency or foreign currency wont work on your local account

I am American on a US account, stationed overseas in Asia. I use my US account for gaming but I set up a local account for local purchases in local currency. Everything I download to my console on the local account can be used by all users on that console
so I have no issues using the DLC and arcade stuff I buy even while using my US account.

I suggest that you do the same and set up a local account for purchases in local currency or the currency you prefer. Hope this helps.