I have had my Galaxy Watch 6 for less than 4 months, and then the strap broke, I would pay for a replacement strap had it been a year or 2 but not less than 6 months and not where it broke, the place it broke is at the point used to fasten the Watch to your wrist. So I went online to ask for a replacement, only to be told I would have to travel 60+ miles to take it for an appointment for someone to look at it.
Not exactly impressed with such a bad quality of service, the agent ignored my message for 15 minutes at which point I gave up and went to twitter, who gave me a telephone number to call, needless to say that went as well as expected 3 different people in 3 departments and not one of them was helping me.
Today, I have sent an email to the "CEO" I await the reply.
The quickest way to have resolved this would have been to ask for some photos (see below) and send a replacement, instead of fighting your customer!!!