ytsouk:
My suggestion as well is if you have not started your ATPL examinations as of yet in Greece is to proceed to Romania for continuation of your training and if the 2 authorities allow, transfer all your current licenses and ratings across.
I know for a fact that the Greek Authority (HCAA) uses the UK CAA syllabus for all of its training including PPL and ATPL theory, question banks etc. I don't know if the Romanian authority would accept on this basis should you wish to finish in Greece.