Your current profile says "merge me". You don't specify who you want merging with. Could you give some links where you have done so? And, exactly how did you request a merge? Try http://stackoverflow.com/help/user-merge or http://stackoverflow.com/help/other if that doesn't work.
For two accounts to be merged, we require both users to specify "I want to me merged with X", where X is a link to the userpage of the other user. If both accounts do not do so, we can't be sure that they're the same (well, we can in some cases when the IPs match), and we won't merge.
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