Lost Baggage

I was delayed in JFK's immigration department last Tuesday after a flight from Jamaica to New York. The delay was as a result of a mistake that an immigration officer had stamped in my passport last year. After the delay I went to the baggage section almost everyone from my flight was gone. I only saw one of my two suitcases. My red suitcase was gone and I saw a similar red suitcase, nobody picked it up. I filled out a form that was given to me by a representative. I was promised that my suitcase would be sent to me within a couple of days. I am yet to receive my suitcase, that suitcase had most of my clothes and very valuable items in it. I have been trying to contact JFK since then but I have been unsuccessful. I was given a number by a gentleman in the lost and found department and he told me to contact customer care, I have been unable to get through to the number. I need to be compensated and I do not know what to do.