Vodapay dragging feet with refund due

Placed an order in November on Vodapay which they did not fulfill within their own stated timeframes. I instructed them to cancel my order and to refund my money immediately. This was mid-December. Despite repeated followups on Twitter via Vodapay (no)Support, I have been fed excuse after excuse, but my refund is simply not being actioned. Money which they have been sitting with since November. This is unacceptable. Let a customer owe them money, they will be quick to disconnect service or threaten with debt collection. All I want is my money back. They are behaving no better than these ************ retailers that are ***** as hell.