regarding computer training for cs executive

hello,

i wanna know one thing that when i was trying to registered for computer training on CS website...when i entered the registration no. and DOB...it's showing invalid reg. no...do u have any idea abt that...actually my regn. no conatins 15 digits..there was written enter 17 digit reg. no....as i reg. on aug 2006..does our reg. no. become change? and  i registered for CS inter.

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