Husband's Tesla setting off a phantom ringtone on my phone

[class77]

We recently bought our 2nd Tesla Y, but we have separate accounts on each. I sent an invitation to my husband so that he could see both cars inside the Tesla app as my service center told me I should. Now all hours of the day, I'm getting my husband's customized ring tone playing but he's not calling. I suspect it has something to do with the syncing of the Teslas, but I have no clue if that's correct. Does anybody have an idea how to fix this or had this happen to them?

 

[class77]

Edited to add: We both have iPhones and are using the iOS Tesla app. Don't know if that make any difference or not......Sorry, I couldn't figure out how to edit the original post

 

[GreyFoggyDay]

Delete the app from your phone to see if the issue persists? (In an effort to pinpoint the source of the problem)