Hello Sam,
If you are struggling with any aspect of your subscription [please see the details here:
http://www.model-engineer.co.uk/editorial/page.asp?p=908
Bear in mind that they will be able to access & check full details about your account which Jason and I can't.
That said, it seems that you may be trying to access 'archive copies' with Pocketmags, so the following advice may help you:
The digital subscription gives you full access to pocketmags versions of all your SUBSCRIPTION issues, which you can download and keep locally. Instructions for accessing your subscription issues can be found by clicking the DIGITAL link on the black bar at the top of this page.
The October 2015 issue will only be available to you while your subscription is live, through the online archive which uses a different viewer. As Jason says you need to enter your new subs number in your profile and this will them give you access to the ME archive through the MAGAZINES link in the green bar at the top of this page.
If you need more advice or would still like to change your subscription call Subscriber services who will be able to sort you out (normal office hours):
Customer Service (UK + Overseas): +44 (0) 1604 828 748
Please note this is a standard rate UK number NOT a premium rate number.
Neil
Edited By Neil Wyatt on 21/01/2016 20:04:44