I`m really amazed how you fail to see this point. Its ok for ETF to be waived if price of txt message is raised, but if you purchase unlimited 3G/4G/LTE feature and only get it at the 3G/4G/LTE speed up to 2GB, how is it not same things ? 

You purchase a plan that says this is 3G speeds data at unlimited capacity meaning there is no cap on how much data you can use at 3G speeds, then at 2GB you are told you can’t use your unlimited feature that you bought as 3G at 3G speeds on unlimited bases... How is this not a violation of contract T&C or anything else ....