I was supposed to have sent some seminar topics to my supervisor for him to approve one for me, but unfortunately I delayed due to some reasons of not being able to access my WhatsApp for some days. What do I text him apologizing for my delay

Here's a suggestion for your message: --- Subject: Apology for Delay in Sending Seminar Topics Dear [Supervisor's Name], I hope this message finds you well. I want to sincerely apologize for the delay in sending the seminar topics for your approval. I encountered some issues accessing WhatsApp that prevented me from reaching out sooner. I appreciate your understanding, and I will make sure to send the proposed topics to you as soon as possible. Thank you for your patience. Best regards, [Your Name] --- Feel free to adjust any parts to better fit your style!