My Toyota app claiming that crucial contact information missing or needs to be updated

I have been struggling for 3 weeks with the ****ty customer care service Toyota I ame having the worst experience as a customer. I have contacted toyota more than 4 times now all in effort to complete sign up on the My Toyota app Every single time I ame being promised to be contacted and helped but 3 weeks later phone calles every second day and still nothing SHOULD HAVE CHOSEN FORD