I prepurchased it on Steam and won't refund it.

I prepurchased it on Steam and will refund it / have already refunded it. I will not buy it anywhere.

I didn't prepuchase it and I will buy it on Steam when it comes back next year.

I didn't prepurchase it and will buy / have bought it on Epic soon.

I prepurchased it on Steam and will refund it / have refunded it. I will buy it again on Steam next year.

I prepurchased it on Steam and will refund it / have refunded it. I will buy it / have bought it on Epic instead.

I prepuchased it on Steam and will also prepurchase it / have prepuchased it on Epic.

I prepuchased it on Steam and refunded it. I prepurchased / will buy it on Epic and will also buy it on Steam when it comes back next year.

I didn't prepurchase it. I bought it on Epic and will also buy it on Steam when it comes back next year.