If you have only ever played on a phone, the browser version is worth a look. It is the same game and the same account, but a few things get easier.
How the browser version works
You sign in to Facebook the way you always do, then open DoubleDown Casino. The game loads in the page. There is nothing extra to install.
Because it is your Facebook account doing the signing in, your chips, your level and your history are the same ones you see on your phone. Nothing is duplicated and nothing is separate.
Why code collectors like the browser
Promo codes are almost always one-click links. A real web browser is built to open links, so the whole routine is quick: click a code, watch the chips arrive, click the next one.
It also handles the awkward cases better. There is no manual code box in the game lobby anymore, so any code you type by hand gets entered on a code redemption web page. Being in a browser already means you are exactly where you need to be.
Keeping the Facebook connection healthy
DoubleDown Casino connects to your Facebook account through app permissions. Once in a while those get out of step, and the symptom is usually a login that will not complete.
You can look at the connection yourself. On a computer, go to Facebook, then Settings, then Apps and Websites, and find DoubleDown Casino in the list. Renewing or re-adding the connection refreshes the permissions. Some long-time players do this every couple of months as simple housekeeping, whether anything is wrong or not.
If a login problem persists, DoubleDown's support team keeps a guide for restoring Facebook app permissions, and reconnecting the app sorts out most cases. Their ticket form is at https://support.doubledowncasino.com/hc/en-us/requests/new.
When a code click gives you nothing
Here is a quirk that has puzzled players for a long while. You click a code, the game loads, and no chips appear. No error, no popup, just nothing.
Click the same link again. It can take two or three tries before it sticks and the chips come in. This is a Facebook issue rather than a problem with the code or with the page you clicked from, so patience is the whole fix.
That is different from a popup saying the code has already been used or expired, which means exactly what it says: that code is finished for your account.
If the game itself will not load at all, and you get a black or white screen, that is almost always cache and cookies. Clear both, close the browser, reopen it, and try again. A different browser or a private window will tell you quickly whether the trouble was stored files.
Keep one tab parked on https://www.ddpcshares.com/double_down_c ... tion_codes while you play, and you will never have to wonder whether you missed something.