I apologize for any trouble caused by the unexpected circumstances. Sorry for any inconvenience this may have brought about. Kindly accept my deepest apologies for any inconvenience you may have experienced. Regrettably, we are unable to fulfill your request currently. Apologies 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. Please pardon me for any actions have caused any inconvenience. I get it that this may be annoying. Apologies for any inconvenience you might have elicited. Please be assured that we are working to solve the matter as promptly as possible. I'm truly sorry for any disruption you may have faced due to this circumstance.