I'm sorry for any trouble caused by the unforeseen circumstances. Sorry for any inconvenience this may have caused. Kindly accept my sincere apologies for any inconvenience you may have experienced. Unfortunately, we can't to meet your requirements at this time. Apologies for any letdown this may cause. Sorry for any trouble that may have arisen. I'm sorry if there were any confusion in sharing information. Kindly pardon me if my actions have caused disruption. I get it that this must be annoying. Apologies for any inconvenience this may have elicited. Rest assured that we are doing our best to solve the matter as quickly as possible. I sincerely apologize for any disruption you may have faced because of this situation.