Tele.Fiber Corp. refused to address issue

I'm writing to complain about the repair service I received from Tele.Fiber Corp.. After paying $730.31 for unit, I found that it experienced long delays. I've tried resolving this with your customer service team multiple times, including speaking with Mozelle J., but have not received a satisfactory resolution.

I'm writing to complain about the repair service I received from Tele.Fiber Corp.. After paying $730.31 for unit, I found that it experienced long delays. I've tried resolving this with your customer service team multiple times, including speaking with Mozelle J., but have not received a satisfactory resolution.