Purchase has been declined.

Lmao, they don't want you spending too much money now.

Well, that's strange. Maybe you changed your IP or something?

Maybe you have put a limit on the total of internet transactions on your card and this purchase exceeds it ? That'd stop the order from being procesed.
I know it's not exactly this, but maybe something similar ? Too many purcheses or some other thing that might have triggered an antifroud protection ?

Try to contact Support.

I think Gaben don't want your money.

making too many purchases or your card is out of money or some stuff

Never saw that but either you could have had a fraudelent transaction in the past or you have exceeded Steam's limit

They might be thinking that it could have been a jacked account or something. Stop buying so much shit.

Contact steam support?

Go home, johnxfire's wallet. You're drunk.

Steam go home you're drunk