Uncomfortable long distance running shoe

Dear customer service

Around May to June of 2021, if not slightly earlier, I bought a pair of Solarglide 3 running shoes at the Cape Gate Adidas in CPT. I specifically asked at the shop about the specs, and its comfort, and I was assured that the shoe was for long distance running, and that I could run 10km up to 42km. I obviously needed this as both a long distance runner, and also a regular gym person. I was excited about my shoe, so the next day I took the shoes for a spin, and I ran 15km, but for some reason after 5 km, the shoe felt weird. I let it go, as I assumed it was because it was still new. However, its been a good 6 months, and still the shoe has not improved. I own a pair of Asics as well, so I alternate between the two, but still I am not winning with the Adidas shoe. The shoe is only problematic when I run for more than 5km on the road or treadmill with it, but for other gym activities, like Hitt, or aerobics, its comfortable.

In September, I ran 6 long distance social races altogether, and I have gotten to a point where even my left knee is being affected because I don't have that road support from the shoe. And, because my Asics shoe treats me differently, it is easier for me to tell that the Adidas shoe is not providing the promised comfort, and this is despite me wearing the Falke running socks with the shoe for extra comfort.

I love the shoe, and to be honest I am not sure what you can do for me. I think my best bet is that I ask that you take back the shoe, and I perhaps get another comfortable shoe, and if that shoe costs more, I perhaps pay that additional amount. This shoe is not it for long distance running.

Regards