I have a t-mobile family plan with 4 lines. Some of the fees including Federal Universal Service Fund, State & local sales tax are charged twice on both account level and each line level (five times). I don't believe that these double charges are disclosed clearly in the agreement.
The agreement says: 'I will be charged a monthly regulatory programs fee of up to $1.61 per line.' But it was charged again on account level for $3.
The taxes are charged on the account level and again on each line. So the total charges for 1 family plan is $20.93.
Line level (charged 4 times for 4 lines)
T-MOBILE FEES AND CHARGES
Federal Universal Service Fund
$0.05
Regulatory Programs Fee
$1.61
GOVERNMENT TAXES AND FEES
State & Local Sales Tax
$0.12
State 911
$0.90
Account level
T-Mobile fees and charges & Government taxes and fees
T-MOBILE FEES AND CHARGES
Federal Universal Service Fund
$3.00
GOVERNMENT TAXES AND FEES
State & Local Sales Tax
$7.21