Answer:
Dear Owner,
My name is blank and I have worked at blank company for blank years. It is my sincerest apologies that I have left the company to go on strike. Please understand that It has nothing to do with you nor am I blaming you. It simply needed to be done as what was occurring was unjust. To lie about bonuses and not pay employees on time is just plain cruel and not following proper protocol. I hope that this problem can be fixed so that I may rejoin the company without a heavy heart and get back to working for the company that I love.
Sincerely, blank
Step-by-step explanation:
I used sincerest apologies and the line about not blaming a individual person to make it sound more friendly. I also added the line about returning to work to imply that once the problems had been fixed I'd willing to retake my job and that this was not done out of malicious intent.