Changing Employer

Hi everyone!  I just wanted to get an advice from you all.

I came here to work, but unfortunately i've been on standby because my employer took in so many workers but didnt have any vacant position and still waiting for vacancy. I've arrived here 3 months ago and have been waiting for 3 months going 4 now to be formally employed. I havent signed any contract from them yet. 

My question is, can I withdraw my application with my employer and look a new employer who can provide me a working permit so I can start working or I am not allowed to do so?

Thanks and I appreciate all the help and responses.. thanks again ☺

New topic