One of my research articles has been published in one of the IEEE journals. The IEEEXplore page, the data of publication is mentioned as 29 March 2016, but the article has not yet been assigned to an issue. I enquired with the concerned people and below is the reply which I got from them.
The Editor-in-Chief of the journal determines when a paper is included in an issue. You can contact him directly to find out when he plans to publish your paper. His contact information can be found on Xplore. Thank you. XXXX
Should I write to the EiC about the article or should I wait till comes?