[Resolved]  Ambrane India — can not register and avail for warranty services through sms.

Serial no. : p[protected]
Name : dipak dutta
Product : p-1122power bank - white and blue colour
Date of purchase : 08/10/2017
Delivered on : 11/10/2017

Dear team, i am unable to register my product for warranty via sms. It shows dear user, the keyword has expired... How should i register my product for warranty? I have been trying to call ambrane customer service... They are not picking up the call. I have used below format to get it register but nothing helped.
Amb space space - i can find 16digit number only.