When is the last estimated date of delivery shown in your order details? Once that passes by one day you can go back to the order click the drop down menu next to the item, locate "I didn't receive it" follow the prompts to complete the request.
The seller has 2 days to respond with either tracking showing delivery or a refund. If by the by the third day you haven't received a response or refund, go back to the return and click on "Ask eBay to step in" for your refund.
I'm not sure what being handicapped has to do with not receiving your item.
