FlexPay
The first is what would formerly have been our Smart Access programs where you qualify for a contract and recieve the same subsidy on a phone as a non Flex Pay subscriber (not necesarrily true outside of corporate channel). You can have 2 lines under this option.
The second is for people who normally would haqve needed to pay a deposit of 250 or 500 per line. In this case the service is month to month and as such there is no subsidy available for the phone. You may have three lines with this type of account.
I also recommend going into the store or looking at T-Mobile.com since it is reasonable to infer you have a computer and internet access.