JSA & housing benefits

Hi,

I was on JSA for the last 25 weeks.
I started an unpaid job today because I need to do anything in my medical field to keep my c.v. alive. Although the post is UNPAID and this is mentioned in the contract, the JSA advisor informed me that they cant pay me any more.

1- will this affect my Housing benefit & council tax benefit?
2- if yes, do I need to contact the council to inform them about circumstances change or the Job Centre will do this automatically?
3- if I borrowed money from a bank or friend or educational organisation abroad, will they consider this as income that will not allow me to have benefit from the council?


TBC

Thanks in advance