I lost my airpod case with one earbud what is the replacement cost?

Same thing happen to me, I went in today and had to replace the case and my right AirPod. It came to $199 with taxes (98 for the case and $88 to replace either the l/r AirPod).

The cost for the case will be around 59-99 dollars (not including tax) depending on the type of AirPods you have.

The cost for the AirPod will be around 69-89 dollars (not including tax) depending on the AirPods you have.

Hope this helps!