I apologize for any trouble caused by the unforeseen circumstances. My apologies for any inconvenience this may have brought about. Please accept my deepest apologies for any inconvenience you might have encountered. Unfortunately, we can't to fulfill your request at this time. Sorry for any letdown this may cause. Sorry for any inconvenience that may have encountered. I'm sorry if there were any confusion in communication. Kindly pardon me if my actions have brought about disruption. I understand that this must be annoying. Apologies for any frustration you might have caused. Please be assured that we are doing our best to resolve the matter as promptly as possible. I sincerely apologize for any disruption you might have faced due to this situation.