MSC Cruises – Rude rep refused help with drink package addition

I made a booking for 12 cabins and was trying to add drink packages. The concierge who I originally booked the cruise with had left the company and I spoke with a rep named christy who replaced her. She sounded frustrated and angry even before I could give her any details. She did not help me and just told me to call another number because she did not make the original booking.
Christy is at [protected]
If you get her on the phone hang up and call again so get someone else. She has given me such a bad impression of the cruise even before I go on it