I was able to check it. I see here that you are affected about the increased of the price rate on one of our grandfathered plans. It increased by $0 and the discount of $0 from autopay and paperless is no longer eligible. This happened specially on old plans.
 
The customer service summary you received may say different amount because the computations of taxes there is not accurate and estimated only. I can assure you that the additional charge is only $00
 
As years passed by and based on economic status, the plan rate may really increase. In this case, our suggestion is to check with our new plan to see if you will be able to save or if you will have more benefits and features. Shall I check it for you?
 
Prior the plan rate increase, you had limited data speed at 3mbps only and may slow down if network is busy. Right now, you have the fastest available data speed and it will only slow down if network is busy which rarely happen as our network is always good and reliable.
 
If you haven't felt the difference yet about the increase on your data speed, you may reboot or restart your phone once.