myChevrolet App Issues

I've been having problems for months, I've several case numbers and have several text messages etc with several people and still no answers. My problems are the same as above. Including dashes for the info, I cant log in, my vehicle statues isnt updating like it should, it updates every 12-14 hrs, I'm currently text messaging with someone for a problem that started as my vehicle information wasnt updating, so they had me do the "troubleshooting" steps. and now i cant even log into my account via the app. It wouldnt be such a problem but i pay for this service and i'm not getting what i pay for. I will definitely keep this in mind when i buy my next vehicle. I had a tech person call me and told me that the problem was fixed and he asked me to open the app to make sure the problem was fixed and guess what... the problem hadnt been fixed and he said he would escalate my case again and i havent heard back from him or anyone. it's like none knows how to fix it and everyone is avoiding it.