Hello Portia Jelwana-Schmidt,
Thank you for reporting this issue. I apologize for any inconvenience you're experiencing with the Google Calendar integration on Android.
To help me investigate this further, would you be willing to grant me temporary administrative access to your site? This will allow me to thoroughly examine the configuration and identify the cause of the problem.
Before providing access, I highly recommend creating a complete backup of your site to ensure the safety of your data.
Looking forward to your response.
Best regards