No, there is no way it will go up to 300mbps.... You would have an optical carrier, and be paying tens of thousands per month......
In order to look at your issue farther, you need to provide us with more details... Please try to answer the following questions...
1. EXACTLY what package from Qwest did you order? What is the up & down stream SUPPOSED to be?
2. EXACLTY HOW did you determine that this is running slow? High ping times? Downloading a file, running a speed test?
2a. If you determined that the connection is slow by downloading a file, WHERE are you downloading the file from, and HOW? FTP site, P2P, saving from browser?
2b. If you detered that the connection is slow by running a speed test, what site did you use?