Poor product supp****, no after sale support

I purchased a Garmin watch for my wife end of March 2022, using the Momentum Multiply shop. In November components from the watch dial had started to move/come loose. I contacted Multiply to assist with arranging for a replacement watch, i was told to contact Garmin support directly. I wrote a mail to Garmin support on the 1st of December and again on the 6th of December, both attempts ignored and still no response. Momentum / Multiply cannot just walk away as they are the "middle man" and need to ensure that the products they not only endorse, but also supply via their platform are legit and their clients receive the service they should.