I wanted to try out T-Mobile on my new unlocked 6s, and it seemed from online that the prepaid plans include lte data, but capped to 8Mb/s. I went to a store on Friday to ask for the best option to try out the service, and asked if they had a prepaid plan with uncapped lte speed, and the guy told me they did. He said the $50 prepaid with 3GB included uncapped lte speed. Well my phone has only been getting speeds of around 9Mb/s, and after going back and looking online, it seems the guy was wrong. Is it true that T-Mobile has no prepaid plans with uncapped lte speed? If not, am I screwed since the prepaid plans are nonrefundable? Can I upgrade my prepaid plan to a regular plan without paying again?