Call their tech support again, and ask them to check your profile settings. If they still fail to dispatch a tech to take a look at things, ask to speak to a supervisor. Politely but firmly ask the supervisor to cut a ticket with their testing group. Basically, the testing group needs to look at settings for your line on the DSLAM end. Sometimes they misconfigure things, and never take the SNR ratio into account to apply the correct settings. Let me know if you need more help. They came to my house, and now I getting higher speeds!