Hi Dear, hope all is well with you, family and love once, please do the following :
1 - write a cover letter and explain the situation to them and attach a certified copy of your Bio Date of your passport that shows your Name and info along with UK resident permit, make sure you correspond your File Number or your Client ID number you can find that on your CIC immigration document that was sent to you or your spouse in Canada. on your cover letter clearly explain the situation that you are in UK until End 2014 and you may stay there longer until your application finalize or otherwise depend on your plan. the reason they have transfer you case to Islamabad CHC, because you are a Pak National and the processing time for Afghan and Pak National are 29 Months, so they are thinking a head of time based on your information provided on your application or it wasn't clearly explained. you can send the above information via mail or email to them. the info is as follows
Email: OttPilot-Immigration @ cic.gc.ca
Mailing address : Case Processing Pilot – Ottawa
219 Laurier Avenue West, 7th floor, section B
Ottawa, Ontario K1A 1L1
Canada
Note : please make sure to communicate your Application No or your client ID number provided by immigration Canada to you and essential info: your Name, D.O.B, address and contact telephone and email, good cover letter, short but effective and that would be a very good opportunity to include some quality supporting documents, pics from you and your wife together, emails, chat logs if you have visited or she, photocopies of visa or exit, entry stamps, gift receipt any good logical supporting documents that would help your case. last but not least the reason your case is in CPPO - Ottwa that this office now in Canada act as NHQ office for immigration Canada, most of Pak and Afghan National ( Family spouse cases ) after they prescreen by Mississauga office, they will send to Ottawa first, in Ottawa the entire case is scanned and enters to GCMS immigration system, the initial review happens in Ottawa now these days after that the case will be forwarded to CHC Islamabad electronically through CIC server to be available for further review by decision making officer and to correspondence with client in Pak or Afghanistan for the next stage of processing, so please take care of this situation before the case get transfers to CHC Isb it would be much harder to reverse it back to London office, hope that info would be helpful to you. if you need further info please dont hesitate to ask we are all here to help. Good luck. Best Wishes.
Regards,
CVimm