Outsourcing inevitably creates a firewall between engineering and support that shouldn't exist though.
In a properly functioning org, support has a way to escalate quickly to engineering if it's confirmed "This is broken." Engineering in turn uses those incoming requests to recognize flaws in their own products.
Outsourcing creates "Hide behind the SLAs and remain ignorant of any issues you've created" barriers that will ultimately sink a company.
But to me, the question has always been "Do I think I'm omniscient as an engineer? Do I think I can imagine every way the customer is going to try and use this product? Every way it can interact with other systems? Every quirk of a specific customer environment/dataset/etc.?"
Well, if not, then good news! The support org should be capturing, categorizing, documenting, and forwarding all those cases to me.
And each case is an opportunity to make the product better!
From their subprocessors list it looks like it was most likely "WEBHELP ROMANIA SRL"