[נפתר] sync multicurrency with google listing & ads

Background of the issue:
the prices of my products on Google Shopping are being displayed with “+tax” after the price, even though the price shown already includes tax. Google support told me that's because the main currency of my website is USD. They told me that I need to change my main currency to ILS on my case, which is a bit complicated for me so I am looking for another solution.

Symptoms:
The prices of my products on Google Shopping are being displayed with '+tax' after the price, even though the price shown already includes tax. Looking for a workaround instead of changing my website main currency.

Questions:
Is there a way to sync the secondary currency of my products to Google Shopping instead of the main one?
Do you have another solution for displaying prices correctly on Google Shopping without changing my website's main currency?