Terrible customer service

I have submitted a claim for a dentist over 3 times now. The app scans the image all messed up so it's unreadable. I then emailed it and didn't hear back for 2 weeks. After countless calls I was told the date of birth in my invoice was wrong. Why did nobody contact me to tell me this? I have now resubmitted the correct date of birth invoice over a week ago and I still have not heard anything back. The Twitter page just ignored my tweets and DMs and emails never get rep**** to. I'm really appalled by the service