2 reasons are that the HO can confirm KOL has been obtained (it is ESOL that causes problems) so they wouldnt need the certificate physically and
I would quote from uk in life test website which is owns by home office.
http://www.lifeintheuktest.gov.uk/htmls ... er_10.html
[size=18]What happens if I lose my pass notification letter?/size]
Your pass notification letter is very important: you should keep it in a safe place until you are ready to fill in your application for citizenship or indefinite leave to remain. If you lose this letter, you will not be given a new one to replace it. This means that you may have to pay to take the test again.
secondly, if your partner is technically applying for ILR on completion of 6 years DL then she will effecively be applying outside the immigration rules, not subject to them and therefore would not be reliant upon it.
I can confirm you dont need Life in Uk Test to apply for ILR.
Here is guideline from a uk web site.]Exemption for certain immigration categories
You will not have to meet the KOL requirement if you are being granted settlement outside the Immigration Rules, or if you are applying for settlement as:
* a Foreign and Commonwealth citizen on discharge from HM Forces (including a Gurkha);
* the husband, wife or civil partner of a Foreign and Commonwealth citizen on discharge from HM Forces (including a Gurkha);
* a victim of domestic violence;
* the bereaved partner (husband, wife, civil partner, unmarried partner or same-sex partner) of a British citizen or someone who was settled here;
* a parent, grandparent or other dependent relative of a British citizen or someone who has settled here (under paragraph 317 of the Immigration Rules);
* a retired person of independent means;
* a European national or the non-European family member of a European national, making an application under the Free Movement of Persons provisions (not based on the Immigration Rules);
* a Turkish businessperson under the European Community Association Agreement (ECAA) with Turkey;
* someone who has spent five years in the UK with permission to stay as a refugee;
* someone who has spent six years in the UK with discretionary leave;
* someone who has spent four years in the UK with exceptional leave to remain;
* someone who has spent five years in the UK with humanitarian protection; or
* a dependent child of someone in an employment category that preceding the points-based system (listed in paragraphs 128-193 of the Immigration Rules, excluding paragraphs 135I-135K) or of someone who is here as a businessman, self-employed person, investor, writer, composer or artist (paragraphs 200-239 of the Immigration Rules). This includes children who are 18 or over when they apply.
However, you will need to demonstrate your knowledge of language and life in the UK if you later apply for British citizenship, unless you are exempt for other reasons. For more information, see the Citizenship section.
If you are applying for settlement in one of the categories above, you should ensure that you meet the requirements for that category and can provide documentary evidence to support your application. The application form for your settlement category lists the evidence.
I would thank for Life in Uk Test link.I struggle to find it.
http://www.ukba.homeoffice.gov.uk/settl ... uage-life/
This is simply a general discussion not an immigration advice. I not necessarily correct on everything I would say. I am learning too