I'm sorry for the inconvenience caused by the unexpected circumstances. My apologies for any disruption this may have caused. Kindly accept my sincere apologies for any inconvenience you may have experienced. Regrettably, we can't to fulfill your request currently. Sorry for any disappointment this may bring. Sorry for any trouble you
may have encountered. I'm sorry if there was any confusion in communication. Please pardon me if my actions have caused disruption. I get it that this may be frustrating. Apologies for any frustration you might have caused. Please be assured that we are doing our best to resolve the matter as quickly as possible. I'm truly sorry for any disruption you might have faced due to this situation.