You should be able to file an "item not received" case with eBay the day after the last estimated delivery date shown in your Purchase History. At that point, the seller will have three business days to provide tracking that shows delivery to your location or refund you. If the seller does not cooperate, ask eBay to step in and refund you directly.
If the tracking appears to show delivery near your location, that is a bit more complicated.
Good advice for dealing with false tracking can be found in the marked solution to this thread:
https://community.ebay.com/t5/Buying/I-tried-contacting-seller-i-tried-contacting-fedex-i-tried/m-p/...
What kind of feedback does your seller have?
You can avoid many fake tracking issues by choosing to only do business with experienced sellers that have a proven track record of delivering similar items as seen by examining the seller's feedback page, and by avoiding inexperienced sellers, sellers with patterns of negative feedback indicating serious problems, or sellers with large gaps in the selling history or recent drastic changes of seller behavior.
