I'm sorry for the inconvenience caused by the unforeseen circumstances. My apologies for any disruption this may have brought about. Please accept my sincere apologies for any inconvenience you might have encountered. Unfortunately, we can't to meet your requirements at this time. Sorry for any letdown this may cause. Apologies for any trouble that may have encountered. I apologize if there were any misunderstanding in sharing information. Please forgive me if my actions have brought about any inconvenience. I get it that this must be frustrating. Sorry for any frustration this may have elicited. Please be assured that we are doing our best to resolve the issue as promptly as possible. I'm truly sorry for any inconvenience you might have faced because of this situation.