You can file a refund from PayPal up to 30 days after purchase, but not for custom made items.
You may be covered if you used a credit card at the time of payment, for stock and custom systems.
Some credit cards cover you for up to a year after payment.

That said, I suggest you have a look at the old BA forum regarding outstanding orders & refunds.
Also, you can approach the 'new' management (Fortooh) of BA website.
They claim they will investigate all issues if you supply them with your details.

What I don't recommend is for anyone to just sit around and wait for something to turn up of its own accord.
I doubt very much that will happen!