Tag Servicing / Repair?

[BRR]

Hi All, looking for some help as serching google has left me confused with the array of promises, prices etc....

I have a Tag Heuer Autavia (with the calibre 02 movement) from circa 2016 which has stopped working, 100% my own fault for not ever having it serviced etc. now it's totally dead.

Does anybody have any experience with getting one of these serviced / repaired? if so can you recommend a company to use?

thanks in advance