Yasou file!
Are you sure you want to come over here? I agree with the comments previously made and further more I think you will find it almost impossible to get a job with NATS.
As I am honoured to be the one and only Greek with a UK ATC license my advise to you would be to think twice before taking the plunge!
If you were lurred by rumours of massive salaries remember that unlike the rest of the world overhere they are talking salaries before tax which means what you actually take home is not a lot more than what you make at the moment over in Athens.
The cost of living is extortionate: 1.40 euro for a litre of petrol!and 18 euros for a small pizza!
Yes I know you are wandering what am I still doing here.
I got here 15 years ago for the sole reason that my wife of 17 years is English and I had strong links with the country.
Further more back then the CAA would allow public exams which means that if you showed up at the college of ATC and you were good enough you get an ADC license and then find someone to give you a job and sponsor you for the rest of the ratings
Unfortunately its all changed these days as you know.
You could still get a job outside NATS and there is a shortage of Radar Controllers but you will have to do the APC cousre at the college and most probably fork a lot of money out for a radar cousre without guarrantee of a job!
I hope I haven't put you off too much but if you want a job swap please let me know!