I have twice requested tracking information from a seller via eBay message. No information for 4 day

[bertie_n_jeeves]

I requested twice tracking details for a purchase I made. No contact from seller then 5 days later item is marked as posted but no tracking information uploaded. What should I do with an elusive seller who refuses to reply to this request.

[cam-2793]

Does the listing specifically state that the item is sent with tracking as many ( especially small) items are sent without.

What is the seller's Handling time? 

The information for both these questions can be found in the item listing under the postage tab.