Refund from ebay taking forever

I bought something and returned it. Seller didn't refund me, Ebay stepped in and said they will issue the refund. Im lost now, I've contacted ebay customer service 5 times already and they said they will get back to me. It's been 2 months. Each time the rep will say it's been escalated and someone will get back to me but it never happens. 

 

What happened to ebay? This used to take like 2 working days and i will get a refund. Hope someone can advised what should i do.