I am sorry that you have lost your Android OPPO phone and all your data is also lost. Now it’s a situation that can really frustrate you. I am saying because I too have faced such situation few days before and my new Redmi phones was lost.
Though, after several steps, I have finally deleted my data from it and I was relaxed that nobody will access my device data.
However, I would like to share you one blog that will help you to delete all your data from your lost Oppo phone without any problem. In this blog, you will get the best way to face the situation where you can lock your phone completely, ring the device and also erase every data from it. only you have to remember the Google account and password that is linked with the phone.
For more details, visit: [Extensive Guide ] How to Find Lost or Stolen Android Phone Easily