PBS Dependant Partner visa extension-2019

[Vivek112]

Hello,

I have a couple of questions for my wife's PBS Dependant visa extension.

My Wife’s PBS dependant visa is based on my previous Tier-2 General visa. Her visa is getting expired in this december 2019. I got ILR via Tier2-General based in May 2019. I am trying to extend my wife visa now and I need some information,

My Visa:
ILR Approved(via Tier2 General-5 Years sponsored) in - May 2019
My Wife visa:
Valid Until: 12.12.2019

1.Which visa or permission to stay has Mr xxxxx applied for or been granted?
Tier 2 (General) leave to remain - Is this correct ?

2.Do you have one of these Home Office reference numbers for Mr xxxxx?
Yes, I have their biometric residence permit (BRP) number

3. BRP number -
Do I need to give my Tier2 BRP number or ILR BRP number ?

4. What is the length of Mr Shivakumar Chellapuram's Certificate of Sponsorship (CoS)?
My wife required 3 years visa extension and she will be eligible for ILR after that. But Since I got ILR from Tier2 based and I was given 5 years COS. Do I need to mention 5 years here or Can I apply 3 years ?

Could you please help me here ?

Thanks

[Vivek112]

Appreciate for your help.

[Vivek112]

Thanks

[Vivek112]

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Can someone reply to above query please ?