I apologize for the inconvenience caused by the unforeseen circumstances. Sorry for the disruption this may have brought about. Kindly accept my sincere apologies for any disruption you may have experienced. Regrettably, we are unable to meet your requirements at this time. Sorry for any disappointment this may cause. Sorry for any inconvenience you may have arisen. I apologize if there was any confusion in communication. Kindly pardon me for any actions have brought about any inconvenience. I understand that this may be frustrating. Sorry for any inconvenience this may have elicited. Please be assured that we are doing our best to solve the issue as quickly as possible. I'm truly sorry for any inconvenience you might have faced because of this circumstance.