You have a job offer from a company but this does not mean you can work there. You have a job offer and this job offer you take to the Ausländerbehörde to Landratsamt? to see if you’re allowed to do this job. If the Landratsamt tells you no, they will do it to you in a letter form. They send you a letter and it says yes or no. And if it says no, there is a reason as to why they are not giving you the allowance for this job.