I'm sorry for the inconvenience caused by the unexpected circumstances. Sorry for the disruption this may have caused. Please accept my sincere apologies for any disruption you might have encountered. Unfortunately, we can't to fulfill your request currently. Sorry for any disappointment this may cause. Apologies for any inconvenience that may have arisen. I'm sorry if there were any misunderstanding in communication. Please forgive me for any actions have brought about disruption. I understand that this may be frustrating. Apologies for any inconvenience this may have caused. Rest assured that we are doing our best to resolve the matter as quickly as possible.
I sincerely apologize for any inconvenience you might have faced due to this circumstance.