Birthday Thank You Messages

Recently, I received many messages wishing me a happy birthday from a lot of Greek and Italian friends that I spend a lot of time in both countries for work. How could I say thank you for the birthday greeting in both languages? Written in English would be appreciated .... Thanx:)

Greece: Ευχαριστώ για τα ευχετήρια μηνύματα.

Greek σας ευχαριστώ για το μήνυμα γενέθλια
Italian La ringrazio per il messaggio di compleanno

Ti (you) / La (you, formal) / Vi guy (you) ringrazio per gli auguri di compleanno.