PayPal refused me a refund, usual 45 days rubbish, I did a chargeback for my first order and the credit card company put the money straight back into my account within about 5 days. Bit of a pain to organise but worth it.
I've asked BFL to refund the other orders or I'll have to do the same for them too.
How do you charge back your order on your credit card company if you payed with your balance? (I ask the question because I payed with my paypal balance)
You have to take paypal to court, difficult but not impossible. It's under £100 in the UK and Paypal invariably settle the day of the case or a few days beforehand. But they like to leave it until the last minute. You can claim expenses and costs via the court so it won't cost anything once they pay up. If they offer less tell them to do one :-)
There are a number of successful cases on other forums if you need addresses for documentation etc. Google taking paypal to court in your country.