I'm sorry for any trouble caused by the unforeseen circumstances. Sorry for any inconvenience this may have caused. Kindly accept my deepest apologies for any inconvenience you might have encountered. Regrettably, we can't to fulfill your request currently. Sorry for any letdown this may cause. Apologies for any inconvenience you may have encountered. I'm sorry if there was any misunderstanding in sharing information. Kindly forgive me if my actions have brought about disruption. I get it that this must be annoying. Sorry for any frustration you might have caused. Please be assured that we are working to solve the matter as promptly as possible. I sincerely apologize for any inconvenience you may have faced because of this circumstance.