windstream dsl

I have tried for SEVEN DAYS at different times during the day to get through on your broadband support line and have been on hold over & over for 30+ minutes only to be dropped! I tried calling the residential helpline, explained my predicament to the operator & told she would put me through only to be put to the same line then hung up on. I understand you had a 'service disruption' last weekend but this level of 'customer service' is unacceptable. I'm paying for 6/mbps and only receiving at best 300/kbps. This has been going on prior/during/after this past weekend but I can't get anyone to diagnose the problem. If this is the level of service offered to a long-time customer then I will take my business elsewhere!