I apologize for the inconvenience 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. Regrettably, we are unable to meet your requirements at this time. Sorry for any letdown this may bring. Apologies for any inconvenience you may have arisen. I'm sorry
if there was any misunderstanding in sharing information. Kindly forgive me if my actions have caused any inconvenience. I get it that this must be frustrating. Sorry for any inconvenience you might have caused. Rest assured that we are working to resolve the matter as promptly as possible. I'm truly sorry for any inconvenience you might have faced due to this circumstance.