I'm sorry for the inconvenience caused by the unforeseen circumstances. Sorry for any inconvenience this may have caused. Kindly accept my sincere apologies for any inconvenience you may have experienced. Regrettably, we can't to meet your requirements currently. Sorry for any letdown this may bring. Sorry for any inconvenience that may have arisen. I'm sorry if there were any misunderstanding in sharing information. Kindly pardon me for any actions have caused disruption. I understand that this must be annoying. Sorry for any inconvenience this may have caused. Please be assured that we are working to resolve the matter as quickly as possible. I'm truly sorry for any disruption you may have faced due to this situation.