Sometimes a restaurant will wait to take the tips until the end of their pay week, I've had this happen at a few other places as well. I'm not sure why.
On my credit card, it posts the base amount, with the statement "amount may change." Then, a few days later, it shows the total amount. Your card is likely showing the credit hold. The actual amount will post when it hits your account.
It shouldn't be included. Typically they will do that for larger parties.
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