In the exam, you are allowed to download the stems for the tracks
BUT
You must change them
Here is how you can change them
Adding effects - Add effects such as reverb, delay/echo, changing the panning, using automation, using pitch shifter
Sampling - take the song and put it into the quick sampler to get an alternative version
Tempo - slowing or speeding the tempo up in the song
Dynamics - using automation, you can change the volume of the track OR in the piano roll, you can change the velocity
Here are some covers of the song for some inspiration for your reimagined version.
The bottom left one is a disco remix cover version. Take a look below...
This list of websites might be able to help you:
https://chordify.net/chords/dua-lipa-songs/don-t-start-now-chords?version=youtube:oygrmJFKYZY
https://www.ultimate-guitar.com/search.php?search_type=title&value=dua%20lipa%20dont%20start%20now
https://www.youtube.com/watch?v=b9CXzzcdTYU
https://www.youtube.com/watch?v=iuHz1WAvGE8
This isn't the same DAW but you could use this to help you recreate the beat and change up the genre in other ways etc.
https://www.youtube.com/watch?v=2yyBqA_riPg
https://www.whosampled.com/Dua-Lipa/Don%27t-Start-Now/
Here are some covers of the song for some inspiration for your reimagined version.