I Purchased 2 items from a seller and only 1 has arrived in the box although ebay is saying both items have been delivered. 

When I have tried to say an item is missing it says I have to wait a couple of days as it could still be on the way. How is  this the case when the tracking says it includes both items.

I have contacted the seller but yet to receive a reply yet.

is my only option to wait?