I'm sorry for any trouble caused by the unforeseen circumstances. Sorry for any disruption this may have caused. Kindly accept my deepest apologies for any inconvenience you may have experienced. Regrettably, we are unable to meet your requirements at this time. Sorry for any disappointment this may bring. Apologies for any inconvenience you may have arisen. I apologize if there was any confusion in communication. Kindly pardon me for any actions have caused any inconvenience. I get it that this may be annoying. Apologies for any inconvenience this may have caused. Rest assured that we are doing our best to solve the matter as quickly as possible. I sincerely apologize for any inconvenience you might have faced due to this situation.