Can I beat Sans Undertale and still get a refund?

Is it possible to buy Undertale, play through the entire game and beat the hardest bosses, and still be able to refund the game on Steam?~~~Music - Undertale

Return of the Sans and Chara Friendship AU (art by me) : r/Undertale

Undertale: I beat sans. Essential T-Shirt for Sale by Bingdom

Can I beat Sans Undertale and still get a refund?

Screen Of Death!Sans, New Undertale Fanon AU Wiki

Sans undertale (normal ver.) - Undertale - Pin

Can I beat Sans Undertale and still get a refund?

Sans, In a Locked Room Wiki

UNDERTALE: Second chances in morality, by Matt Leslie

What Happens If You Kill Sans, Then Change To The True Pacifist

Can I beat Sans Undertale and still get a refund?

Can I beat Sans Undertale and still get a refund?