Increasing channel server limit

Hello!

We currently use Discord to manage our sellers throughout the world and provide online assistance and support 24/7.
We have reached 500 channels and noticed we cannot add any more channels.

As you probably can imagine, each store has 2-3 employees included in that channel where they can reach us whenever they need and change this whole operation from Discord, which is quite easy to use, and moving it to another place is not feasible anymore.

I'd like to know how we can increase the cap. This is extremely important as we're expanding to the US in 2025 and expect to have at least three times the number of channels by then.
Would you be so kind as to let me know if and how we can do that?

Maybe as a nitro/server boost option?

I have seen some people saying that this is abusive and too much, but we believe Discord has a lot to offer in the support service and our server proves it can work.
Thanks in advance.

Raphael Bataglia