Any other suggestions for inside ants?
Pet anteater or echidna?

If that wasn't helpful, at least give asking the agent a try. You can write a letter, then call and ask if they got the letter, then a week later if nothing's been done, ask to speak to someone else.
Ants in the house is not okay - stress the whole 'not okay because we have kids' and whatever other argument you can think of.