Swagmeister Vouch 
Straight after adding them, they flexed another deal they just made, where they sold 52k Multiblocks, which initially seemed kind of odd.
The deal went fine, I waited just about 45 minutes to receive my Multiblocks.
Tbf. they were in a game, and wrote to me that it would be about 20-30 minutes.
I told them about their prices being a bit off.
2400 Multibucks - $9.99
2400x3 = 7200 Multibucks - $29.97
6250 Multibucks - $29.99
2400x6 = 14400 Multibucks - $59.94
13000 Multibucks - $59.99
and they took it quite nicely, and hopefully adjusts the prices accordingly.
Overall, quite a positive experience.
Some info you don't get from the thread:
You'll need to link your

to an Xbox/Microsoft account, and give them the details to the Xbox/Microsoft account.
If you'd wish, you could unlink the xbox account after the deal is done.