I am writing to apologize for the unwise investments I made on your behalf. I understand that you have trusted me with your hard-earned money and that I have let you down by making decisions that have not been in your best interest.
I take full responsibility for my actions and I am deeply sorry for the mistakes I have made. I understand that this has caused you financial hardship and I want to make it up to you in any way I can.
I have taken the time to evaluate my decisions and have come to the conclusion that I was not acting in your best interest. I have learned from this mistake and have taken the necessary steps to ensure that it does not happen again.
I understand that this apology may not be enough to make up for the financial losses you have suffered and I am willing to do whatever it takes to make it up to you. I am open to any suggestions you may have to help you recover your losses and to make sure that this never happens again.
I am truly sorry for my actions and I hope that you can forgive me. I will do whatever it takes to make it up to you and to regain your trust.