Hello everyone. I really need your help, I started putting info for my online visa form but im confused with these following questions:

where is your sponsor now:
In the UK

you stated that your sponsor is in the UK. please provide the following details.

-when did they first arrive?
> dd mm yyyy (what is that date meant? what will i write?)

-sponsors permission to live in the UK.
> what will i write in the box? sorry i really don't know :(

-when did they get this permission?
> dd mm yyyy ( i don't have idea what to write)

please help me guys.. thank you sooo much.. xxx