Sorry the Desktop program and the Online versions are totally different and are priced differently. Why did you buy the Desktop program if you wanted to use the Online version? The Desktop program is usually better and has more features than Online.
To use the Online version you would have to start over in a new online return and pay for Online separate from the Desktop program. You can't apply the Desktop CD/Download purchase to Online. Then try to get a refund for the Desktop program.
If you get the Desktop program installed we can tell you how to transfer from your 2020 online return into the Desktop program.
