Can I change the duration of my subscription, even after receiving my first issue of magazine/s?

This is possible only if you want your subscription to  start from any previous month. For example, suppose you have subscribed for Biology Today from September 2013 to August 2014 and have already received the September issue. Now you want your subscription to start from May 2013 to April 2014, then yes, this is possible. We will dispatch all the previous issues i.e. May, June, July and August to you and will send future issues till April 2014. But we cannot  change the subscription period from November 2013 to October 2014