If the phone call does not work or the stop payment either, send a certified letter to them explaining your next legal action. That might just light a fire under thier butts. Also, did they ever provide you with the tracking number? if so, contact the carrier, if not ask them for it and check it out yourself. If it says it has been delivered and you never received it, then it is up to the person shipping the package to start the claim, you can't