What's wrong with Swiss Treuhands?

Since early December I'm trying to find a Treuhand in Zurich/Zug area to answer some basic questions I have around tax and working in Switzerland either as a freelancer or opening a GmbH.

I sent close to 20 enquiries, some I found online, and I got a few that were recommended.

I either don't get a response - 80% or 'we don't accept new clients' - 20%.

At first I thought it's December, and no-one can be bothered, but this is not any better now. If they'd Google me they'd find I work in very well paying job and industry.

What's going on? The only thing I can think if is that they just don't want to help someone that's moving to Switzerland.

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Edit:
I got loads of leads and so much help from the community in my DMs. Thank you all!