I'm sorry for any trouble caused by the unforeseen circumstances. Sorry for the inconvenience this may have caused. Please accept my deepest apologies for any disruption you might have encountered. Regrettably, we can't to meet your
requirements at this time. Apologies for any disappointment this may bring. Apologies for any trouble that may have arisen. I apologize if
there was any misunderstanding in communication. Kindly forgive
me for any actions have brought about disruption. I understand that this must be annoying. Sorry for any frustration this may have caused. Please be assured that we are doing our best to resolve the matter as promptly as possible.
I sincerely apologize for any disruption you might have faced due to this situation.