I apologize for the inconvenience caused by the unforeseen circumstances. My apologies for the inconvenience this may have caused. Please accept my deepest apologies for any disruption you might have encountered. Unfortunately, we can't to meet your requirements at this time. Apologies for any disappointment this may bring. Apologies for any trouble that may have arisen. I'm sorry if there were any misunderstanding in communication. Kindly forgive me if my actions have caused any inconvenience. I get it that this may be frustrating. Sorry for any frustration you might have elicited. Rest assured that we are working to solve the matter as promptly as possible. I'm truly sorry for any disruption you may have faced due to this circumstance.
sorryarii