I'm sorry for any trouble caused by the unexpected circumstances. Sorry for the disruption this may have
caused. Kindly accept my sincere apologies for any inconvenience you may have experienced. Unfortunately, we can't to fulfill your request at this time. Sorry for any letdown this may bring. Sorry for any trouble that may have encountered. I'm sorry if there was any confusion in communication. Please forgive me if my actions have caused any inconvenience. I understand that this must be annoying. Apologies for any inconvenience you might have elicited. Please
be assured that we are doing our
best to solve the issue as promptly as possible. I'm truly sorry for any inconvenience you might have faced because of this circumstance.