[fdsfdsfdsaasd]

Informed of the final cut-off date, sure!

How long have they had the bill mentioned in the top comment on this post? At the very least it's 3 weeks, and the comment suggests it is months.

[sarlalian]

It wasn’t slack, but I’ve had multiple vendors that I was in regular touch with, surprise me with pricing changes in the week(s) leading up to a contract renewal. Never quite this short notice, but definitely as little as 8 business days before the renewal was due.

Both times I’ve paid the new price for 1 year and cancelled. Both times our sales rep was surprised the next year when we didn’t renew.

[fdsfdsfdsaasd]

In this case, it looks like Hack Club sat on a gargantuan bill for at least weeks and maybe months (see top comment on this post).

I'm not denying that what you describe happens, but in this case - ignoring the warning signs, letting the issue crash into a wall and then complaining online about it doesn't help anyone.