How to find out when WP Visa was cancelled by the employer?

[netacct]

Hi All,

I came to UK on WP for Employer A.
Then went back to India, resigned.
After 3.5 months came back to UK on WP for Employer B.

Is there any way to find out when did my Employer A cancelled my WP which was still valid for another 2 years?
Its almost 100% impossible for me to find out that thing from my employer A.

The reason I am asking is, I want to find out whether I got visa for my employer B before my employer A cancelled the visa?
This is for ILR (PR) to see if I got any breaks.

Thanks in advance.

[SYH]

No triple posting please