Why cannot buy more than 10 gifts? Error!

I've seen a guy talk about this once in the past, I think you have to wait 15minutes each time you want to buy +10 copies or so.

Wait a hour and try then.

time. wait for an hour or 2 don't try to buy or it'll "increase time limit"

It's not problem. It's just Steam limit.

Wait for a couple of hours and then try again. If it's still happening wait 24hours since the last failed transaction. It happened to me once before but I didn't know failed attempts kept adding more time so I ended up unable to buy anything for about a week. Had sent a ticket to support the day it first happened. Heard from them 2 days after it got resolved on it's own telling me they don't see anything wrong anymore xD

there's nothing more to do that wait.

There are only 2 possibilities:

1. wait (usually it takes about 1 hour - as you've mentioned, but in some cases it can last several days.)
2. contact support

Thanks for the replies. I will wait and try again tomorrow. The cooldown appears to be a very real thing, unfortunately. :/ I did some research and on other threads, people are saying to re-install Steam client or opt in the beta client? Not sure if these are just trolls.

Honestly, it's a good thing they do this. Steam is a ripe target for fraud and if they allowed you to buy 500 gift copies with a stolen CC, you can bet that Lord Gaben would not take it out of his personal treasure vault. The costs would come from increased fees on trades etc so as to make sure the minions were supporting the war against fraud.

wait few hours, and after you can