we are just not mature enough for such a service at the NSE. In am market where prices respond more to social happening rather than economic fundamentals,we have some long way to go.
if it is introduced,it may be misused or even lead to exploitation.
A likely impossibility is always preferable to an unconvincing posibility.
African parents don't know how to say sorry.. the closest you will get to a sorry is a 'have you eaten'