we have our current product in Xamarin(F#) we would love to move to kotlin native do you have any support free/paid? we have over 10K users atm

I do not believe JetBrains offers paid support for any of its products, including Kotlin. They generally rely on community-based support channels such as this Slack team and its Discussion Boards at https://discuss.kotlinlang.org/. This Slack team does have members of the JetBrains team in it for free support, in addition to the rest of the Kotlin community members

You generally get official support with a company by buying a product subscription but read the fine print... I imagine Jetbrains like most company's would jump at the chance to accept dollars for support contracts 😃 even above and beyond the standard support, for the right price of course.

Hi! I’m product manager in Kotlin Multiplatform Mobile team. We are not offering any paid support for our users, but we’re always happy to talk, answer your questions and help as much as possible - feel free to reach out to me in DM or here, in public channels. For more official support I would recommend you to contact Touchlab, it’s consultancy agency that specialises in Multiplatform and Kotlin/Native: https://touchlab.co/