Dear {Recipient},

I'm sorry for the inconvenience I may have caused you last {day of the week}. I didn't want to bother you, but there was no way I could {do action} by myself, so I had no choice but to ask for your help.

Thank you for obliging me despite your own busy schedule. Your assistance really meant a lot to me. I have {enclosed/included/attached} a {gift certificate/movie ticket/etc.} as a token of my gratitude.

Warmly,

{Your Name}

Dear {Recipient},

Please be informed that your shipment with order number {order number} will be arriving {number of}
{days/weeks} later than originally estimated. The delay is due to {an unusually large demand for the product recently/an error in our system/other reason}. We apologize for the inconvenience.

We would like to offer you a voucher which you can use to avail of a {number}% discount on your next
purchase. Please do not hesitate to contact customer service should you have any questions regarding your order.

Thank you for your kind understanding.

Warmest regards,

{Your Name},
{Your Position}

Dear {Recipient},

Please accept my apologies for not getting the {report/article/etc.} to you on time {this
morning/yesterday/etc.}. I underestimated the time it would take me to complete it, hence I missed my
deadline. I'm sorry for letting the whole team down and for holding up the project.

I plan to work overtime on the {report/article/etc.} so that it can be {on your desk/in your inbox} by {day of
the week}. I assure you this won't happen again. Thank you for your patience.

Sincerely,

{Your Name}

Dear {Recipient},

I'm sorry I failed to {file the records/enter the data/schedule the appointment/etc.} that you requested earlier. I didn't mean to be negligent, but {reason} prevented me from completing the task.

I'm not trying to come up with an excuse, though. Please let me know what I can do to sort this out. I'm willing to {stay back after office hours/reach out to the client/etc.}.

Sincerely,
{Your Name}

Dear [Name],

I am writing to apologize for the accounting inefficiency that I have caused. I understand that my actions have caused a disruption to the business operations and I take full responsibility for my mistake.

I understand that my actions have caused a lot of stress and frustration. I am truly sorry for the inconvenience that I have caused. I take full responsibility for my actions and I am committed to ensuring that this does not happen again.

I understand that my mistake has caused a lot of financial losses and I am deeply sorry for this. I understand that this is not a small mistake and I am willing to do whatever it takes to make it right. I am willing to go above and beyond to make sure that the business operations are back to normal. I am also willing to work with the accounting department to ensure that all the financial losses are recovered.

I understand that my mistake has caused a lot of stress and frustration and I want to apologize for this. I am committed to making sure that this does not happen again and I will work hard to ensure that all the financial losses are recovered.

Once again, I apologize for the accounting inefficiency that I have caused. I take full responsibility for my mistake and I am committed to ensuring that this does not happen again.

Sincerely,
[Your Name]

Dear [Name],

I am writing to apologize for my inefficiency in [task]. I understand that my lack of performance has caused disruption and I am deeply sorry for the inconvenience caused.

I take full responsibility for my actions and I am aware that I have failed to live up to the expectations set for me. I understand that my lack of performance has had a negative impact on the team and I apologize for that.

I understand that it is my responsibility to ensure that I am performing to the best of my abilities and I have not done so in this case. I am aware that I have let you down and I apologize for that.

I have taken the time to reflect on my mistakes and I am committed to ensuring that I do not make the same mistakes in the future. I have identified areas where I need to improve and I am taking steps to ensure that I am meeting the standards set for me.

I understand that this is not an excuse for my inefficiency and I am willing to do whatever it takes to make up for my mistakes. I am committed to ensuring that I am performing to the best of my abilities and I am confident that I can make a positive contribution to the team.

Once again, I apologize for my inefficiency and I am committed to ensuring that I am performing to the best of my abilities in the future.

Sincerely,

[Your Name]