Looks like you may be unhappy with your service. Fortunately, you can cancel it at any time and go on your merry way.
had the plan price change three times including a 40$ increase on the last month of the term.
A subscriber's plan price will only increase if/when a promotional or special discount ends. At no other time does a subscriber's plan price increase.
The monthly bill can increase due to the aforementioned discounts ending and/or state/local taxes increasing.
If you're having speed issues outside of normal evening congestion and/or plan data exhaustion and you would like help, please start a new topic in Tech Support concerning such.