Deal not being honored

When I signed up for service, I was clearly told that I would receive two mobile lines free for one year. This offer was the sole reason I agreed to move forward with the plan. However, I am now receiving past-due notices and billing alerts for charges that should not exist under the terms of that promotion.

This situation is frustrating and concerning. I should not be receiving billing notices for services that were explicitly represented as free for the promotional period. I entered into this agreement in good faith based on what was explained to me at signup, and I expect those terms to be honored.

Please review my account, correct the billing issue, and confirm in writing that:

1. The two promotional lines are properly applied, and  
2. Any incorrect charges or past-due balances related to this issue have been removed.