When you go down, get with the manager OR even better, the owner. Then state if they cannot produce a tracking number with proof of delivery that you want to cancel the order and have your card credited with what they owe you. Delays and non communication are no longer an option. If you have to, call the police to their business in order to file a report. Make sure you have any and all correspondence related to it for the officer to note and review. I'm mad as hell and I'm not going to take it anymore!