Actually, it is not anything out of the ordinary at all. They place blocks of holds on cards all the time. I would say if the pending charges put it over the limit to contact the Credit Card Company. That would be between you and them concerning your personal credit limit. I have learned the hard way to have some space in between. We reserved a rental car once on the same card we were using for our Sail & Sign. Needless to say there was a block or reserved amount on that one for pending charges.