Purchased business edition but still no calculated fields

I have been building forms and sending them for signature for years.  I have Adobe Acrobat DC and yet when I send a new form I have created to Adobe Sign, I do not get the option for calculated fields.  I FINALLY found that I have to upgrade to a business version to get this option.  VERY FRUSTRATING that I have to pay an additional $21 per month just to get calculated fields.  

However, I did it - I purchased the upgrade AND I STILL CANNOT GET CALCULATED FIELDS.  The purchase shows in my adobe account and shows the correct/same login as my Acrobat.  I have tried both on the desktop version and online and NOTHING.  

I have to get this done immediately and have been on hold on customer support chat for well over an hour so I am hoping someone here can help.  Otherwise I am moving to Docusign.