HTTP/1.1 422 Unprocessable Entity Cache-Control: no-cache Content-Type: application/json; charset=utf-8 Date: Fri, 15 Feb 2013 15:54:18 GMT Server: Apache/2.2.20 (Ubuntu) Status: 422 Strict-Transport-Security: max-age=31536000 Vary: User-Agent X-Powered-By: Phusion Passenger (mod_rails/mod_rack) 3.0.11 X-Rack-Cache: invalidate, pass X-Request-Id: 293436e475bfc6face410e6ed241efe9 X-Runtime: 0.161746 X-UA-Compatible: IE=Edge,chrome=1 Content-Length: 152 Connection: keep-alive {"error": "insufficient_pin_balance","error_description": "Refund amount is more than your available Pin Payments balance."}