I'm sorry for the inconvenience caused by the unforeseen circumstances. Sorry for the inconvenience this may have caused. Kindly accept my deepest apologies for any disruption you might have encountered. Regrettably, we can't to meet your requirements at this time. Sorry for any disappointment this may bring. Sorry for any inconvenience that may have encountered. I apologize if there were any confusion in communication. Kindly forgive me if my actions have brought about any inconvenience. I get it that this may be annoying. Sorry for any inconvenience this may have elicited. Please be assured that we are working to resolve the matter as promptly as possible. I sincerely apologize for any inconvenience you might have faced because of this circumstance.