To save your account, you can go to the "Data Transfer Settings" from the Gear icon when you are in-game, then choose "Data Transfer with KONAMI ID". Register a new account if you don't have it yet and bind it to the account.
June 7th update
Recently, there were problems associated with making a KONAMI ID, which has now been fixed, but a new method to save your account is now added as well. You can now set up a data transfer to back up your account using Google Play Games. Simply log in to your Google Play account when you are in-game, and choose "Data Transfer Setup (Google Play Games)" in the Data Transfer Settings.
Setting up a data transfer
1. Tap a gear-shaped icon
2. Tap "Data Transfer Settings"
3. KONAMI ID or Google Play Games
You can link your game data to both a KONAMI ID, or Google Play Games. In case one of them isn't available, you can use the other to restore your data. You can link your game data to a different KONAMI ID, or Google Play Games if you accidentally used a different or wrong account, but it will replace the previous one. If you plan on transferring from using Google Play services to iTunes, make sure you use KONAMI ID instead.
3.5 KONAMI ID
If you are using KONAMI ID, login or generate first before linking your game data to it.
If you did everything correctly, your account is now saved so you don't have to worry about losing it if your phone is broken, a data error or if you uninstall the game. You will have to re-download all of the data files though.
Using your account on a different device
When you want to use your account on a different device, you will need to log in to your account. When you first launch the game, before you tap "INITIATE LINK!", tap the button below for "Data Transfer" and log into your account.
If you set up using a KONAMI ID, simply log in to your registered account that you linked your game data to. If you are using Google Play Services, make sure you are logged in to the right account.
If you lost your account before you managed set up a data transfer, you can try recovering it from the "Contact Us" and "Submit Player Data Recovery Inquiry" from the gear icon in-game.
1. Tap a gear-shaped icon
2. Tap "Contact Us"
3. Read through the description & Tap the button
4. Submit inquiry
You will need to provide your information as accurately as possible for them to be able to identify that it is yours. Simply giving them your player ID is not enough, since anyone can look that up and is not a very reliable information. Try to remember stuff like deck names, latest card obtained of certain rarity or what device you used it on.
Next step is to wait patiently and check your email for a reply from their support team.
you can request to change your password! For whatever reason when I opened duel links today, it forced me to download the whole thing from the beginning (you know, with the credits and the character descriptions). I didn't remember my konamiid password but I do remember the email it was linked with so a request a change and that was it! Stil had to download the whole thing tho. Don't know why.
I had problems with that too. Right below the captcha image there is an link to change it for another one. I think I got it right at the 3rd image. I personally can't distinguish between the o (letter) and 0 (zero). I always write "o" and all in lower case. If you're still having problems maybe you should try with another keyboard or check if the current one has a hot key pressed.
Hi. Can somebody answer my question? If I have set up my konami ID and done the data transfer once, do I have to repeat that regularly so as to make "savepoints"? Or does the game automatically send all my data to my account, so I don't have to worry about logging in and transferring my data all the time?
Losing my months full of hardcore farming account and inquiry doesn't help but said "the data you input is incorrect, we're sorry blah blah", they should fucking tell people to create konami ID the first time people play the game. Fuck you konami, thanks for wasting my time.
Unfortunately I didn't touch any of those believing this game is auto-save with google play games like any other games. Sorry if I was sound rude, was really pissed after my months of farming wasted into nothing. I wish I found out about how important having konami ID before I lost my account. *sigh