Along with my $39.99 Basic individual plan, I purchased the $10 a month 500 texts & unlimited M2M pack. This is what my first bill says:

Under the monthly access charges section of my bill, it says:

500 MSG Allowance + Unl IN MSG 06/25 - 06/25 .                 $32

500 MSG Allowance + Unl IN MSG 06/26 - 07/25                  $10.00

Under the usage section of my bill it says:

                                                                              Data Usage     Allowance    Used      Billable         Charge

Unlimited M2M TXT message (06/25 - 06/25)                            unlimited           1               --                     --

TXT/PIX-FLIX (06/25 - 06/25) messages                                   16                     52             36                   3.60

 Why is it charging me $3.60? does it mean i'm only allowed to use 16 of my 500 texts a day?

If anyone knows why my bill says this, please reply. My first bill is already so high, so anything would help.

Thanks in advance!