Just been informed by EE Customer Services (via 150) that they are currently doing a promotion where they will double your data allowance. Confirmed no catches, additional tie ins, charges, etc. I guess they are getting itchy with rival services on the horizon. Both my lines were upgrading during the call (from 1GB and 3GB to 2GB and 6GB respectively) and the new allowances are now showing on my MY EE app.
For those of you on Friends and Family offers I also explicitly confirmed it will not affect this offer.
NOTE: This was given to me as an existing 4G EE customer. I've been with them since last month, when I transferred from TMO, I'm not sure if this is pertinent. However, the way I understood the CS agent this is a general offer, not specific per customer.
I joined EE last month and just called CS to double check the "call abroad" add on was truly free without any tie inns/etc. While I was on the phone I thought I'd check I was receiving any other freebies I was entitled to (as I couldn't understand why that add on wasn't on my account by default if it was standalone/free). At this point the CS agent told me about the double data allowance promotion.
I would also check if you are entitled to the free "call abroad" add on as it significantly drops international call charges for many destinations. For example EU landline call charges drop from £1/min to £0.05/min in many cases. The following doc gives full details of call costs with and without the add on (page 6 & 7 respectively):http://e-gain.s3.amazonaws.com/external/content/Ts%20and%20Cs/EE_PAYM_NonStd_2012%20v8.pdf
Also for my fellow Londoners, don't forget to register for free wifi on the underground:http://help.ee.co.uk/system/selfservice.controller?CONFIGURATION=1016&PARTITION_ID=1&secureFlag=false&TIMEZONE_OFFSET=&CMD=VIEW_ARTICLE&USERTYPE=1&ARTICLE_ID=341401
Hope this helps those of you on EE already. I assume freebies was right place for it.