I'm sorry for the inconvenience caused by the unexpected circumstances. Sorry for the inconvenience this may have caused. Kindly accept my sincere apologies for any inconvenience you may have experienced. Regrettably, we are unable to meet your requirements currently. Apologies for any letdown this may cause. Apologies for any trouble that may have arisen. I apologize if there were any misunderstanding in sharing information. Kindly forgive me for any actions have brought about any inconvenience. I get it that this may be frustrating. Apologies for any inconvenience you
might have elicited. Please be assured that we are doing our best to resolve the issue as quickly as possible. I'm truly sorry for any disruption you might have faced because of this situation.