Finally alexa replied me.

@akangirl (2436)
India
January 18, 2009 11:01am CST
Actually i have requested them 2 time to update my blog thumbnail but they didn't so eventually i wrote them a email and they have replied me after one month and updated my stats and thumbnail
3 responses
@sdas86 (6076)
• Malaysia
19 Jan 09
Hi, SAme thing happen to my blog long time ago. Maybe it will take some time to correct it.
@stephcjh (38473)
• United States
19 Jan 09
That is great to hear. I know some things take a very long time to get done. I guess they were very busy. Who knows?
• India
18 Jan 09
The same thing happened when I had mailed Technorati 3 months ago when they flagged me and they replied just last week. BTW payperpost rejected my blog for the 7th time lol. To hell with them now.