Thanks for the post and welcome to the community!
For starters, we are sorry that our service did not meet your expectations at first use. The fact of the matter is that HughesNet satellite service does not work like a Terrestrial service such as fiber optic, DSL or cable.
Usage differs from each customer, so that is why we have tools for you to manage your data, such as our Status meter. Because satellite works differently, monitoring your data is effective for managing your usage.
Some of our customers have found that certain routers tend to drain data quicker than others.
Here is a list of recommended one here:
Regarding Netflix, here is a breakdown of how to control your data when streaming from Netflix: https://help.netflix.com/en/node/87
If you feel that your service is draining data, there is a post regarding this issue here: https://community.myhughesnet.com/hughesnet/topics/unidentified_usage_verification
Post back if you need any additional assistance and we'll be happy to address your concerns.