You have 30 days from the latest estimated delivery date to open a case with eBay. If you used PayPal, you have 180 days from the date of payment to open a case with them. If you use a credit card, check with them for what protections they offer. These timeframes are firm and you must not allow the seller to stall you.
"Those who enter the arena unarmed or unprepared are quickly dispatched."
