_____________ (Name of the company)
Date: __/__/_______ (date)
Subject: Apology letter
This letter is in reference to the complaint letter received by our ___________ (department) on __/__/____ (date). I apologize for the inconvenience caused to you due to the shortage of cash. I would like to inform you that this was totally unintentional.
I admit that due to this issue the company has faced a lot of trouble and it may have resulted in incompletion of _____________ (task/project/any other). I have checked with the accounts department and conferred that adequate cash shall be made available.
Therefore, I seek your forgiveness and I will ensure that incidents like these will not happen again in the future. If you discuss further regarding this matter, you can contact me at _____________ (contact details).