I'm very sorry, but I do not believe that Surface was released in Afghanistan, even to third party resellers. This means that even if you find a legit Surface or have one sent to you, that you will need to obtain service in the country where originally purchased, which has proven to have been difficult for others.
Note that I don't work for Microsoft. I'm sorry this isn't the Answer you are expecting but it is the current situation. You will be asked to give a rating to this reply/Answer and please remember that you are not rating your disappointment with the situation but are rating the accuracy of the information provided and whether or not it provided a clear answer to your inquiry. I ask that you DO mark as Answer if it provides the info you needed.