Anonymous Modernist 2024

I do not have a smartphone. I cannot find how to register MCAT. I have scanned the barcode and QR code to files and tried to use the decoder...no go. I sign on to MC as some have and signed on..they say just enter the scratch off code....I must be blind as I see no area to enter the scratch off code after I have signed on. I have tried all the posted 'workarounds'. Any help is appreciated.