Assuming you are talking about the ELP (English Licence Proficiency) check, your first step may lead you to the CAA which issued your licence. I went through the painstaking procedure to have successfully completed my exam in the UK, just to learn that the IAA (Irish) did not recognize the organization, also the UK CAA accepts their exam.
The IAA has changed its view slightly on this, however, another restriction was put in place.
Check also your PM