Sincerely, Mr John.

I regret to inform you that I will not be able to join the company on [Starting Date], as previously agreed upon. I was looking forward to starting my new position on this date, but an unforeseen circumstance has prevented me from doing so.

I would like to express my concern and apologise for any inconvenience this may cause the team and the organization.

I am aware that my tardiness in starting may disrupt the workflow, and I apologize for any inconvenience this may cause. I promise to make every effort to minimize the impact of my delayed start.

As a potential solution, I propose that we investigate the possibility of delaying my start date by a few weeks. This will allow me sufficient time to resolve my personal issues and ensure that I can begin my new position with a clear head and full dedication. I am willing to discuss this issue further and find a mutually satisfactory resolution.

I apologize once more for any inconvenience my delayed departure may cause. I am thrilled to be joining the company and look forward to contributing to its future success.

Thank you for your support and understanding.

Sincerely,

ABC