That's not acceptable.
B1Expressing disapproval of a situation.
I'll look into it.
B1I will investigate the matter.
Let me see what I can do.
B1I will try to find a solution.
We'll get this sorted out.
B1We will resolve the issue.
I appreciate you bringing this to my attention.
B1Thank you for informing me about the problem.
I'll make sure this doesn't happen again.
B1I will take steps to prevent recurrence.
How can I make it up to you?
B1What can I do to compensate you?
I'll get back to you shortly.
B1I will contact you soon with an answer.
I'm very sorry for the trouble.
B1I apologize for the difficulty you experienced.
Thank you for your patience.
B1An expression of gratitude for waiting.
I'm happy to help.
B1I'm willing to assist you.
We value your business.
B1We appreciate your patronage.
I assure you it won't happen again.
B1I promise that the problem will not recur.
I'll follow up on that.
B1I will check on the progress.
I'm working on it.
B1I'm actively trying to solve the problem.
We're sorry for any trouble this has caused.
B1We apologize for any inconvenience.
I can certainly help with that.
B1I'm willing and able to assist you.
I'll do my best to help.
B1I will try my hardest to assist you.
We appreciate your feedback.
B1We value your comments and suggestions.
I understand your concern.
B1I comprehend your worry or anxiety.
We're taking this very seriously.
B1We're giving this issue our full attention and priority.
I understand your frustration.
B2I acknowledge and empathize with your feelings of annoyance or anger.
I sincerely apologize.
B2I express my deepest regret.
Please accept my apologies.
B2A formal way to express regret.