VM will attend to fix erratic speeds even above the minimum speed guarantee if you can show evidence of a problem, in the shape of latency faults (eg through a BQM), or problems in the hub's status data, such as power, noise or modulation issues, high error counts, or network log issues. You'll struggle to get the offshore script readers understand any of that, but if you have a problem then report it here, the forum staff are far more helpful. And if you don't know what to look for in the hub's status data, there's plenty of people here who do, and will help.
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