I apologize for the inconvenience caused by the unforeseen circumstances. Sorry for the disruption this may have brought about. 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 letdown this may bring. Sorry for any inconvenience you may have encountered. I'm sorry if there were any misunderstanding in sharing information. Kindly forgive me for any actions have caused any inconvenience. I understand that this may be frustrating. Sorry for any frustration this may have elicited. Rest assured that we are working to resolve the matter as quickly as possible. I'm truly sorry for any inconvenience you may have faced because of this situation.