Metro man is talking Nonsense,what dash and to whom !!!
With a Jar ATPL,all you have to do is Nigerian Airlaw,if you are a Nigerian,if not,you will sit Airlaw,for a Validation,You will also have to take a Nigerian Medical,with a Nigerian AME.
Also go along with a License Verification from the CAA,and Non accident.
This process,can take anything from a Month to three months,Airlaw exams are sat on certain days of the week.
Good Luck