Thanks for posting this on our forums, you've come to the right place to get help with this.
I am truly sorry that you had to go through that conversation with the unprofessional manager - This is not what we expect and is unacceptable for any employee of ours.
We can get your equipment issue fixed, the only issue is that you've stated "I simply want to replace my current hardware."
I totally understand you do not want to upgrade to anything that would incur a higher monthly charge, we can get your Hub 2 replaced for a Hub 3 which will be a free upgrade. The reason for this is because we simply don't supply the old Super Hub 2 model anymore.
As for the manager conversation, I can get this noted down into a complaint and deal with that myself.
I'll send you a PM now so we can get the ball rolling on both of those aspects - If you understand what I mean with the equipment side of things.
Let me know if you have any issues with what I've stated 😊
Speak to you within a PM soon!