I was at Resorts World last week where I used 5 Hilton gift cards that were $50 each. Thank God I had someone who knew what the issue was. The cards apparently have only $43 dollars on them.
I was told that they (Hilton gift cards) deduct a $7 processing fee. The front desk clerk tried all increments starting at $50... $43 was the magic number.
I think this is fraud as I didn't see anywhere that they are deducting a $7 fee from the cards