Alternative ways to buy Minecraft?

Is there any other websites selling Minecraft? Because for some reason my credit card doesn't work on the Mojang website. So is there any alternative website or way to buy Minecraft. Like purchasing Minecraft codes?

I had that same problem, if you go to your local walmart or target, either one will have a Minecraft code card you can buy, you can redeem it on Mojang's site and get the game. That's what I did and it worked fine.

I bought my Minecraft code at like GameStop.