CHRISTMAS GREETING IN AN EID EVE?????

Last Eid eve I went to Virgin megastore in Villagio to buy some FM modulator. Almost 30 minutes I spend my time there looking for an FM modulator. There's also one white lady standing next to me, apparently she's looking for the same items. When we're busy choosing one of the accessories suddenly one of the Virgin's Philippino salesman greet me and the white lady with a 'Marry Christmas'.. The lady reply the greeting with smile and I kept silent, because that time I feel strange with his greeting. A 'Marry Christmas' greeting in an Eid eve? Are you kidding me? Then I try to follow this fellow, just want to know whether he just greet us or he greet all the guest with the same greet. And the answer is: He greet all the guest with the same greeting words, Marry Christmas.. And not only him, almost all Philippino salesman and salesgirl greet the guest with the same words. Only the Arabic salesperson whose not greet the guest with those words. Honestly I feel uncomfortable to be greet with those words in an Eid eve. Not because I'm a Moslem, but that night is an EID EVE.. Why don't they gives some respect to the Moslem who's celebrating Eid on that day? Even they are not a Moslem and not celebrating Eid then just say 'Eid Mubarak' or 'Hi' or 'Good evening' it's ok instead of saying Marry Christmas! But they wish us with a words that should be mention one month ahead.. I think is too early to say Marry Christmas as Christmas is still almost one month ahead from Eid day.. If we are in Europe or America than it's ok to greet with those words even we are still in November. But I believe we are living in the State of Qatar, a Moslem country.. Please pay a respect to the Moslem even though you're not a Moslem. Even with a very simple words like 'Eid Mubarak Sir/Mam it's ok..