No longer auto-following - and support tickets closed without an answer.

Until recently, Twitter auto-followed back people who follow the @bkkeepr bot. This has now stopped, which is a big problem for my growing service. (http://bkkeepr.com)

Furthermore, the two support tickets I raised at http://help.twitter.com/ (http://help.twitter.com/requests/420236 and http://help.twitter.com/requests/417945) have both been marked "solved" without response or remedy.

Please can you tell me what's up with auto-follow, and why my support tickets keep being closed without an answer.