Dear {Recipient},

On behalf of {name of business}, I would like to offer my sincere apologies for the long wait time you endured at our {office/clinic/restaurant/etc.} during your last visit on {date}.

Having you, our valued {customer/client/patient}, wait for {number of} hours is completely unacceptable. We take full responsibility for this excessive delay, which was caused by {brief explanation of the reason for the delay}. We should have been better prepared for such situations; rest assured we are taking the necessary steps to make sure this doesn't happen again.

We understand that your time is valuable and we are deeply sorry for the inconvenience this has caused you. Please accept the {enclosed/attached} {voucher/coupon/etc.} as a token of our apology. We look forward to serving you at {name of business} again soon.

Sincerely,

{Your Name},
{Your Position}

Dear [Name],

I am writing to apologize for my recent behavior. I know that I have caused you some annoyance, and I want to express my sincerest regret for my actions.

I understand that my behavior was inappropriate and unacceptable, and I take full responsibility for my actions. I know that I should have been more mindful and respectful of your feelings and I apologize for not doing so.

I understand that I have hurt you, and I want to make it up to you. I am willing to do anything to make this right. I am willing to listen to your concerns and take your advice on how to make amends.

I know that I have caused you a great deal of stress and frustration, and I want to make sure that I do not repeat my mistakes. I am committed to learning from this experience and making sure that I do not cause you any further annoyance.

Again, I am truly sorry for my actions and I want to make it up to you in any way I can. Please accept my apology and let me know how I can make things right.

Sincerely,

[Your Name]

Dear [Name],

I am writing to apologize for my behavior lately and for making you feel frustrated around me. I understand that my attitude and actions have been less than ideal and I want to take responsibility for my actions and make it right.

I am sorry for the way I have been acting and for the way I have been treating you. I understand that my attitude and behavior have been inappropriate and unacceptable. I have not been considering your feelings and needs and I am sorry for that.

I have been feeling overwhelmed and stressed lately, and I have not been able to handle my emotions in a healthy way. I have been taking my frustrations out on you and that is not fair. I should have been more mindful of my words and actions and I am sorry for not doing that.

I know that I cannot take back the things I have said and done, but I want to make it up to you. I want to show you that I am sincere in my apology and that I am committed to making things right.

I will work on managing my emotions better and I will strive to be more mindful of how my words and actions affect others. I will also make sure to take the time to listen to you and to consider your feelings and needs.

I value our relationship and I want to make sure that I am not causing any more frustration or hurt. I hope you can accept my apology and give me a chance to make it up to you.

Sincerely,
[Your Name]

Dear [Name],

I am writing this letter to apologize for my recent behavior and the irritation I caused you. I understand that my words and actions were wrong and I deeply regret them.

I want to take this opportunity to explain why I acted the way I did. I was feeling overwhelmed and stressed out due to a lot of personal issues that were going on in my life. I was feeling frustrated and I took it out on you, which was wrong of me. I should have taken a moment to step back and take a deep breath before I said anything.

I understand that my behavior was inappropriate and I want to apologize for any hurt or discomfort that I caused. I should have been more mindful of my words and actions and I am sorry for not doing so.

I hope that you can accept my apology and forgive me for my mistake. I promise that I will do my best to be more mindful of my words and actions in the future. I will also work on managing my stress and emotions better so that I don't take it out on other people.

Once again, I am sorry for my actions and I hope that you can accept my apology.

Sincerely,

[Your Name]