I have four lines and currently pay $160.00 range each month to T-Mobile.
The Sprint sign up website directed me to check my devices at local Sprint store. The store associates then clarified that I would be paying $90.00 month during 1st year (4 lines).
The fee is generated from $60.00 1st line and $30.00 2ND line - the free applies to lines 3 through 5 if applicable.
Yes. It's a sizeable reduction. But I am not leaving T Mobile for Sprint. The reasoning is the misleading sleazy approach Sprint promotions usually take.
Buyer Beware.