My letter to Sprint for being overcharged for internet data usage. To Whom it May Concern: I have been a loyal customer to Sprint for over 10 years. I have six lines and work with a business partner who also has six Sprint lines. I pay Sprint thousands of dollars each year. Never have I been so outraged as to when I started being charged overages for internet data use. I am livid. I'm certain the only reason Sprint has changed it's unlimited air card plan to 5GB is to charge excessive fees during this window of... read full review »