Visa transfer

Hello. I just wanted to ask how many days for visa transfer? My new employer as i follow up it several times said its still on process. Now my grace period nearly end. My old employer will cancel my visa at the end of this month. I cannot get also my new passport from embassy since my old employer is requiring the visa from my new employer before they can give me my old passport. Please advise. Highly appreciated.

Mobility takes anywhere between a week to 2 weeks.   How can your old employer cancel your visa at the end of the month if they have allowed mobility?

I am confused.  You need to be clearer in your question.