These come up from time to time.
For this offer, get Spotify Premium for 3 months free.
- Individual plan only
- $14.99 month thereafter.
These offers are always for new users only.
If you already have an account then you will need to create a new one (different email address) and use a credit card not used previously.
I recommend Wise if you don't have it already to give you a new card number for the trial.
Make sure you cancel straight away to avoid being charged at the end of the trial.
Also check here if you don't want to spend money on Spotify Premium just to skip ads:
https://www.cheapies.nz/node/33666
If you're only going to use the premium for 3 months and stop paying, then at that point you'll most likely have songs saved in your original Spotify account, as well as the new one that you just created. If you want to transfer your saved songs back to your old Spotify account, so that they're all in one place, then you can use something like this:
http://www.spotmybackup.com/