CP11 but I haven't received any payments and now owe money

Hello! 

I have been trying to contact the IRS but I can't get through or even on the hold line. 

I have not received any stimulus payments. (Not the 1st, 2nd, or 3rd) When I filled out my taxes, I don't think the 3rd has been issued yet. I am eligible. For the rebate credit, I put $1800 ($1200 for the 1st one and $600 for the second one. Everything was going fine, my state taxes were excepted and I got my refund back from them. But, then the IRS sent me a form (CP11 notice) saying the was an issue in the recovery rebate credit and I now owe them over $1000 when I was supposed to be getting about that much in my tax refund. What do I do? Why did this happen? I also paid for extra help from turbo tax to find and fix errors. Is there a way to find out why it was not checked correctly? Can I get my $30 back for the extra support I'm not receiving? 

I have been calling the IRS for days but I can never get through to a human. I'm so frustrated! Please help!