LongHorn Steakhouse review: refund not received after being promised by manager

I dined at a longhorn steakhouse in cold spring ky on 1/30/19.
My service was terrible; very slow and incorrect meal delivered to table. No refills on drinks when asked, no sour cream when asked, etc...
Then I placed a to-go order and waited 35 additional minutes; asking our waitress twice about the delay
I was told they were "short in the kitchen", one of the cooks was in a mva.
As I continued to wait, the waitress stated that she spoke with the manager and she was going to take care of the bill.
Since this time, I have called twice, once speaking directly with the manager who stated yes she remembered and it should come off my cc bill. It has not. Second time I called, the person stated she would have the mgr call me back. No call back.
I want the credit to my account, and I will never dine there again.