I am in the middle of getting an advanced check done in the job I'm currently working in. I'm due to get paid in the middle of this month but I imagine my background check will need to be completed as they need a payroll number from this which will only be granted once my check is done. My application was submitted to the relevant body on the 31st on March so my question is how long does an advance check take ( it will be all clear so should be as straightforward as possible)