Purchased License but CANNOT UPGRADE : /

Bles :pray:t6:
i have had to take my main 2019 iMac in for a screen repair and IAMusing my old 2013 iMac and i want to updrade BBT to my most current presets - SeeMe​:dove: and so i paid the very reasonable price (ty Andrea :pray:t6: ) and when i clicked the verification link you emailed me on completion of purchase=>BTT said: "BTT IS NOW VERIFIED".... but when i click to update it just says i will need to buy a license as the version installed on this computer is more than 2 years old : /

and when i import my current prefs no presets are there : (. . .

please help :pray:t6: