Do I have to use all of my Welcome Offer at once? Not at all. You can save some to play later, but you would need to use everything within 30 days, or they would expire. Related articles When do I receive the Refer a Friend Reward? I opted in to a promotion but I didn't get a reward. Why not? I’ve won a physical prize; when will I receive it? How can I claim my Welcome Offer? If I win from my Welcome Offer, can I withdraw?