Overcharged by Global Broadband for service

I'm writing to complain about the consultation I received from Global Broadband. After paying $331.20 for device, I found that it doesn't work as advertised. I've tried resolving this with your customer service team multiple times, including speaking with Trever H., but have not received a satisfactory resolution.

I'm writing to complain about the consultation I received from Global Broadband. After paying $331.20 for device, I found that it doesn't work as advertised. I've tried resolving this with your customer service team multiple times, including speaking with Trever H., but have not received a satisfactory resolution.