2019 TurboTax payment

I purchased TurboTax with confirmation TTWBC179783131 and didn’t E-file immediately as I needed to review more. I went to submit my taxes this evening and Turbo Tax wants me to put in a service code to let them know I already purchased it. I put the confirmation number in as I didn’t see anything in email for a service code and it wouldn’t go through; Said something like code not recognized or valid, etc. Where do I find it how do I get my service code to complete sending in my taxes?