Why do I see a charge of $28.39 on my bank statement instead of $12.94?

If you are a BlueLight Internet member, your payment of $12.94 failed. A $3.00 return fee was added to the unpaid balance. On your bill date we charged you the outstanding balance of $15.94, plus the current monthly charge of $9.95 + $2.99 service fee for a total of $28.88.