I accidently purchased the 2016 Deluxe instead of the 2016 Business today. How do I exchange what I purchased?

Hi,

This morning I purchased the 2016 Deluxe download, order # QSTW#######, and I should have purchased the 2016 Business download.  Is there a way to return the Deluxe and purchase the Business software?

Best,

[name removed]