I’m unable to enter service code. The code I received from TurboTax email was encrypted.My account was stuck with $15 off from Robinhood. I couldn’t remove this...

I have 2 discount code1. $15 from Robinhood2. 20% from turbo taxI wasn’t able to remove $15 Robinhood discountHow can I remove $15 discount code? So I can enter...