that was old thing bro i am tatasky user since 2009 and in recent past many policy has been changed. i my self was unable to downgrade now a days and repeated cc words to you that there working policy are now changed now you can only upgrade base packs via mytatasky and can not downgrade it. in your case what you said that dhamaka199 to ultra pack upgrade is also not working is i guess pure insane luck of yours as recently for my uncle staying in nashik did same kind of thing of pack upgrade via mytatasky.com and response was so quick that even before i log out the session all closed channels started broadcast due to pack upgrade process completed.