There is no such thing as a 30-day frame to cancel. The contract begins the second your system is installed, and the cancellation fee begins then as well. See http://legal.hughesnet.com/ServiceTermsAndConditions-current.cfm
To cancel, you will need to call 866-347-3292.
During your first twenty days of service your monthly data allotment is continually refreshed. This relaxed bandwidth period is given as a courtesy by HughesNet, in order to allow those who need to update/upgrade their devices to current to do so without it affecting their monthly data allotment, as this type of activity can use a lot of data. After these initial twenty days your data usage starts being tallied as it normally would. The relaxed bandwidth period is explained in the Welcome email sent by HughesNet.
Because of this, it's likely that you didn't run out of data during your first thirty days, so your speed wasn't throttled.
And, as maratsade explained, there is no 30 day period in which to cancel without having to pay the Early Termination Fee, so there is nothing "convenient" about your data lasting 30 days in the first month.
It's very important to monitor your data usage, as when you run out your speed is throttled. You can do so via the HughesNet Usage Meter, which you can download from the HughesNet MyAccount site. You can also sign into the same site and click on the Usage header. There is also the HughesNet Mobile App, which you can download from Google Play or the App Store. Lastly, you can go to the System Control Center.
Lastly, though you can stream with HughesNet, it's a very data intensive activity, so you have to keep a careful eye on your data and prioritize its usage. Going by Netflix's numbers, streaming uses around 350MB per hour in LD, 700MB per hour in SD, and around 3GB per hour in HD. Again, if you exhaust your data, your speed will be throttled.
With all of this said, if you feel that you were misled during your sales call, and it's been no more than three or four months since that call, you can request a sales call review. You can request the review in this same thread. If it's determined that the sales rep did not set appropriate expectations you may have recourse.
Good morning KathrynRoseS,
Thank you for your patience while your case was reviewed. Please check your private messages (PM) in the top right corner of the community page as I've sent you a PM to further address your concerns.
Good morning KathrynRoseS,
Welcome to the community and thank you for posting. We can certainly look into requesting your sales call for review to determine whether the sales rep set the appropriate expectations. I'll post back once I get the results. Your patience and understanding are much appreciated.