Misdiagnosis complaint against Hospital Specialists

I want to report a serious concern with Hospital Specialists's device that I purchased on October 23, 2020 from your Lake Uriahburgh, Delaware store. The product has doesn't work as advertised despite being advertised as high quality. I've contacted customer service three times and spoken to Otha M., but my issue remains unresolved.

I want to report a serious concern with Hospital Specialists's device that I purchased on October 23, 2020 from your Lake Uriahburgh, Delaware store. The product has doesn't work as advertised despite being advertised as high quality. I've contacted customer service three times and spoken to Otha M., but my issue remains unresolved.