Watch with inaccurate readings

I am so disappointed with the service I received from Garmin SA.I took my watch garmin venu 2 S for the repair because it was reading inaccurate readings.It’s been over a month now I haven’t received the watch.Garmin are world leaders technology which is why I purchased this expensive product from them.I am leaving the country on the 8th of November 2022 .My worry is to leave SA without my watch. Kindly assist me It’s sad that I still love Garmin watches but the treatment thy giving me it’s unacceptable.My watch it’s still under warranty.