Just spent 45 minutes on the phone with them, and they couldn't find an itemized breakdown of the charges. 
They will email it to me when they get it from their hotel supplier/liaison.
They suggested I contact the hotel directly, which I did, and now awaiting their reply.
Will keep you posted...
Update:
The hotel refuses to provide any information, and refers me to the booking site =Chase.
Chase has yet to email me the breakdown.
Meanwhile, I remembered that as part of my paranoia I took screenshots when placing the order on Chase

Looks like they charged me about 14.5% for "Taxes & Fees".
Since It cant be the Israeli 17% VAT (which I shouldn't pay as a tourist), does anybody know what this is, and if it's legit?