Requirement Time Frame For PR

[imran1u]

Hello Everyone,
My Wife (EEA National ) Need bit Information towards PR.

She came to UK on August 2008 and started University ( for last Year Of Education " Bachelor Degree " ),Degree completed late September 2009.

* Work started April 2009
* WRS issued March 2010 ( But On Certificate its Mentioned Work Commenced April 2009 )

So When She is going to be Eligible for PR.
When She came we lived at one address for two years , then moved another address and still living here from last 3 years .

Our first address land lord was paying the bills and Council tax, all we were paying the rent.
how she is going to prove her first two years of living on that address, Only one Prove is that ( She Was issued WRS on that Address).

Would like to bit information on this :

Regards
Khan