【More・・・】
I'm sorry for the inconvenience caused by the unforeseen circumstances. Sorry for any inconvenience this may have caused. Please accept my deepest apologies for any disruption you may have experienced. Unfortunately, we can't to fulfill your request currently. Sorry for any letdown this may bring. Apologies for any trouble that may have encountered. I'm sorry if there was any confusion in communication. Please forgive me if my actions have brought about any inconvenience. I get it that this may be annoying. Sorry for any inconvenience you might have elicited. Please be 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.