Ranted about this guy yesterday (who didn't get that we weren't hosting his server).

Today my colleague picked up the phone and was like "yo, I've got this guy on the phone asking for you *explains who it is*"
Me: Oh FOR FUCKS SAKE. FUCKING FINE, PUT HIM THROUGH 😡
Guy: hey! I just wanted to let you know that the issue has been solved, it was not on your end.
Although I know I'm not required to do this, I want to apologize personally for the behavior of my it guy. It wasn't okay and if you got any stress or whatsoever due to him, again, my sincerest apologies! I've had a talk with him, it won't happen again. Have a great weekend!

Glad those kinda people still exist!