Hey there! Great question! To use data with a pay as you go plan you will need to add a data pass which you can be purchased with refill cards or extra funds that you have on your account. You can add a data pass by calling us at 611 and speaking with an agent or using our automated system.
The pass options are:
1 Day or 500MB (whichever comes first) for $5
1 Week or 1GB (whichever comes first) for $10
Manage your T-Mobile account