I'm sorry for any trouble
caused by the unexpected circumstances. Sorry for any inconvenience this may have brought about. Kindly accept my deepest apologies for any disruption you may have experienced. Unfortunately, we are unable to meet your requirements currently.
Apologies for any letdown this
may bring. Sorry for any trouble that may have arisen. I apologize if there was any confusion in sharing information. Please forgive me for any actions have brought about disruption. I get it that this must be frustrating. Apologies
for any frustration you might have elicited. Rest assured that we are working to solve the issue as quickly as possible. I sincerely apologize for any disruption you may have faced because of this situation.