4.5 stars trustpilot review, although trustpilot warns that the company has incentivised customers to change negative reviews. So use your own judgement.
I just made the purchase through Paypal, and had the code sent within 5 minuets . You have to use VPN to set location to Brazil and log into your Xbox account incognito to redeem code. You cannot redeem through console.
Followed redeeming instruction to the T and successfully redeemed the code. I used my own VPN service though.
1.) Download & install the following VPN trial software on your phone / pc / mac > https://zenvpn.net/en/vpn-locations/brazil/
2.) Select your location as Brazil and click connect
3.) Visit the Xbox.com website in incognito mode on your browser and login using your Xbox Live details
4.) Redeem the code!