They don't care if you quit. There's two more whales waiting to replace the ones that leave and countless completely clueless people who've never experience the evil of "F2P" mobile games before wading right into EA's open jaws
But I will say it's pretty easy to get a refund on games like these, at least through Apple. A friend of mine just got his full $1k refunded. Like the third time he's done it, too. So don't give up too quickly, try contacting Google/Apple support and see what happens