I apologize for any trouble caused by the unforeseen circumstances. My apologies for the inconvenience this may have brought about. Please accept my sincere apologies for any inconvenience you might have encountered. Regrettably, we can't to meet your requirements currently. Sorry for any letdown this may bring. Sorry for any inconvenience you may have arisen. I'm sorry if there was any confusion in sharing information. Kindly pardon me if my actions have brought about disruption. I understand that this must be annoying. Sorry for any inconvenience this may have caused. Rest assured that we are working to resolve the matter as promptly as possible. I sincerely apologize for any inconvenience you may have faced due to this circumstance.