How to cancel PSE and receive refund

Hello I am a very non techy person and work as an artist.  For many years I have scanned my artworks, usually four scans, into laptop and PS and basically followed a very basic format to allow Panorama Photomerge which was great for submitting to exhibitions etc.  I am working to a deadline and the previous laptop with old PS has died.  Now that we have to pay subscription I chose PS Elements thinking all I wanted to do was bring a large artwork together after scanning by merging images.  
I bought the Elements program from Adobe direct and have tried and am spending too much time trying to get a decent result, the program looks very different to the PS one I had before and it seems a lesser quality result.

What I would like to do is cancel this purchase and look at the PS subscription instead.

However I'm not sure how to do that as I have asked on the chat icon and isn't able to answer my question.

i assume I login and deactivate but how do I request a refund?  They will end up getting more from me financially but I don't want to upgrade if I still have to pay for Elements.

it doesn't seem easy to do I would really appreciate anyone able to give me a step by step option.