Minecraft won't let me buy it?

We got so far into buying it and we put in my dad's credit details… But it says something about how something went wrong…

I Really Really Really want minecraft and I've played the demo… I spend 99% of my time watching people play it on youtube… It's getting pathetic seems as the other 1% is school and homework… No family time and barely any sleep wich is super unhealthy

I'm not sure WHY I want it so much but it's kinda annoying

Added (1). I want it for pc

What laptop should i use?

At laptop is better?
Laptop1:
Fujitsu Siemens v5355
3gig ram
250gig hard drive
256mb graphic card sis Mirage
intel pentium dual core cpu t2390 @ 1,86 ghz
Windows vista home premium i can't really upgrade to windows 7 as the sound driver mucks up.
or

Hp 6735s
5 gig ram
150gig hard drive
256mb graphic card Ati
Amd Sempron SI-42

Mostly for light gaming e.g. Minecraft and general web browsing
or should i change the ram over so computer 1 has 5 gig and computer 2 has 3?

windows 7 pro and working good

I can change the hard drive

which one is the best?

Or should i leave them be?

Added (1). i know people asked what i wanted the laptop for?

How many top youtube channels make minecraft videos?

I'm just checking the most viewed youtube channel list and tob subscribed list, and I find many minecraft channels. I think it's rather interesting, for I never realize how popular minecraft videos are, though I watch them myself. So does anyone know how many channels exactly in top 100 channel make minecraft videos?

Which would be a better gaming pc?

They are pretty much the same computer, i don't know which one would be better.

#1. Http://www.bestbuy.com/site/desktop-4gb-memory-1tb-hard-drive/1494231.p?id=1219052697656&skuId=1494231&st=pcmcat287600050002_categoryid$abcat0501000&cp=1&lp=5#tab=overview

#2. Http://www.bestbuy.com/site/desktop-8gb-memory-500gb-hard-drive/6980021.p?id=1218818471270&skuId=6980021&st=pcmcat287600050002_categoryid$abcat0501000&cp=1&lp=3

Pretty much, the only game ill be playing is minecraft. How much FPS do you think I would get for either of them.

I can't download latest Minecraft launcher, only lets me play demo?

I bought Minecraft for my son, and after downloading the launcher - which is NOT the latest version for some reason, its 1.3.7 - it only lets him play demo…
Why can't I download the latest launcher, which is 1.6.something?
Might that be the reason why it only lets him play Demo?
I'm sure we're logging in with the correct email and pw… Still, only Demo… For almost $30… :/

Is this a great gaming computer?

The computer I'm looking at is the iBUYPOWER - Desktop - 8GB Memory - 500GB Hard Drive from Best Buy. I know it will run Minecraft just fine, (thats what I'll mostly be playing). Will I need to upgrade the HDD to 1TB or is 500GB alright… If you want to look at it…

Dell Inspiron 660s Minecraft?

Hi, I'm thinking about purchasing the Dell Inspiron 660s. It has 8GB of Ram and 1TB HardDrive. It runs Windows 8 and has a Intel HD Integrated Graphics Card. It has a 3rd Generation Intel Core i5-3340s processor. I just want to know if it will run Minecraft, and about how much FPS.

-Thanks!

Added (1). If you want to look at…
http://www.dell.com/...piron-660s