Frustrated with Engineering Partners International's lack of response

I'm writing to complain about the return process I received from Engineering Partners International. After paying $149.0 for system, I found that it doesn't work as advertised. I've tried resolving this with your customer service team multiple times, including speaking with Ulices Z., but have not received a satisfactory resolution.

I'm writing to complain about the return process I received from Engineering Partners International. After paying $149.0 for system, I found that it doesn't work as advertised. I've tried resolving this with your customer service team multiple times, including speaking with Ulices Z., but have not received a satisfactory resolution.