I'm sorry for any trouble caused by the unforeseen circumstances. Sorry for the disruption this may have caused. Kindly accept my deepest apologies for any disruption you may have experienced. Unfortunately, we can't to meet your requirements at this time. Sorry for any letdown this may cause. Apologies for any inconvenience that may have arisen. I apologize if there were any misunderstanding in sharing information. Kindly pardon me if my actions have brought about disruption. I get it that this must be annoying. Sorry for any inconvenience this may have elicited. Rest assured that we are doing our best to resolve the matter as promptly as possible. I'm truly sorry for any inconvenience you might have faced due to this circumstance.