Frustrated with Quality Consultants Belfast's lack of response

I'm writing to complain about the training session I received from Quality Consultants Belfast. After paying $170.57 for device, I found that it has a manufacturing defect. I've tried resolving this with your customer service team multiple times, including speaking with Precious V., but have not received a satisfactory resolution.

I'm writing to complain about the training session I received from Quality Consultants Belfast. After paying $170.57 for device, I found that it has a manufacturing defect. I've tried resolving this with your customer service team multiple times, including speaking with Precious V., but have not received a satisfactory resolution.