I'm sorry for the inconvenience caused by the unexpected circumstances. Sorry for the inconvenience this may have brought about. Kindly accept my sincere apologies for any disruption you might have encountered. Regrettably, we are unable to fulfill your request at this time. Apologies for any letdown this may bring. Sorry for any trouble that may have arisen. I'm sorry if there were any confusion in sharing information. Please forgive me for any actions have caused disruption. I understand that this may be frustrating. Sorry for any frustration you might have caused. Rest assured that we are doing our best to solve the matter as quickly as possible. I'm truly sorry for any disruption you may have faced because of this circumstance.