I filed 2018 taxes with TT. owed tax bill which i paid. money taken from my account. have NEVER recieved a copy of my 2018 return. Dont even know if irs got my money?

In 2019 i have multiple phone calls with TT "expert" know one could get me a copy of my return or acknowledge that the $6,000+ went to the IRS. What can I do? now TT wants me to pay them for doing my 2019 taxes before they will talk with me. Its a scam ... why would i want to give them more money when i dont even know that the IRS got the $6,000+ ... I do know it was taken from my account.