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