Hi Thanatoon, that's a great question! I'm happy to hear that you are working with your seller to come to a resolution. If you still have not received your item and it's getting close to 30 days from the estimated delivery date (of the original item) you will at least want to open a claim to ensure you're protected. Please keep in mind that you only have up to 30 days from the latest estimated delivery date (of the original item) to file a claim.
Here is a link that should help you get your claim started: http://ebay.to/1GIQTcu
Let me know if you have any other questions or concerns. ~Jasmine