Go to http://support.guildwars2.com/gemcards and follow the instructions.
1. Log in to Guild Wars 2 with the account where you want to unlock gems.
2. Open the Black Lion Trading Company panel. The default hotkey is [O]. You can also click the lion icon ( ) in the upper left corner of the game screen.
3. Click the "Redeem Code" link in the upper left corner of the Store homepage.
4. Enter or copy and paste your gem code into the field that reads: "Please enter your Gem code"
5. Click Redeem.
Gems are delivered automatically once the code is successfully redeemed. 

Guild Wars 2 Gem Card USA - USD

Value

By submitting this request, you are authorizing Your Digital Reward to provide personally identifiable information to PayPal, Inc. for the use of their services. Such personally identifiable information may include email address or phone number. This information is being shared to the extent that it is necessary for your use of PayPal services. If you submit incorrect information, Your Digital Reward has no ability to update your account information for a period of 30 days, per PayPal policy.

PayPal Instant Payout (USD) - USD

1. To access your reward, visit https://www.myprepaidcenter.com/home. and enter the redemption code received. 2. Proceed through the steps for creating a profile, which will give you access to your virtual 16-digit card number, expiration date, security information, where your card can be used, available balance, transaction history, and optional email / text alerts. 3. What the codes are for: You have purchased codes that can be redeemed for virtual prepaid cards. Each code can be redeemed on their website for a valid 16-digit card number and 3-digit security code, which can then be used to shop online.

My Prepaid Center Visa USA - USD

To redeem,

1. Log in to the Gate app
2. Click on【Redeem Gift Card】at the Crypto Gift Card homepage
3. Enter the redemption code to complete it. The funds will be transferred to your payment account

Gate.io Gift Card - USD

● Visit the Redemption Website: Go to www.rewarble.com/redeem.
● Enter Rewarble Code: Input the unique code from your Rewarble card.
● Provide Necessary Details: If required, enter additional information like your
email address.
● Receive Virtual Visa Code: A Virtual Visa code is instantly generated for your
use.
● Use Virtual Visa Code: Start using your Virtual Visa code for online transactions.

Rewarble VISA Global - USD

To redeem a Gift Card on the Binance App:

Log in to your Binance App and tap [Profile] - [Gift Card] to enter the Gift Card Marketplace.
Tap [Redeem].
To redeem a Binance Gift Card and credit the fund to your Binance Wallet immediately, tap [Redeem Binance Gift Card or Code].
Enter the redemption code and tap [Redeem]. The funds will be credited to your Binance Wallet immediately.
 

To redeem a Gift Card on the Binance website:

 Log into your Binance account and go to the Gift Card homepage.
Enter the redemption code to redeem or add your gift card.

Binance (USDT) Global - USD

In-store Redemption
1. Visit your local Best Buy store. 2. Print email or show e-gift card on your mobile device when checking out with Cashier.
Cashier Instructions: 
1. E-gift cards are processed the same as physical gift cards.  Select gift card as payment, scan bar code, enter 4-digit PIN and hit enter
CLICK TO PRINT THIS PAGE

Online Redemptions
1. At Checkout, enter both the card number and 4-digit PIN
2. SHOP AT BESTBUY.COM

Best Buy USA - USD

Prepaid Mastercard - USD

<ol>
<li>Create an account or sign in to the DoorDash app or on DoorDash.com</li>
<li>Navigate to Account & Gift Card</li>
<li>Enter your gift card PIN Card</li>
<li>Enter your gift card PIN</li>
</ol>
<hr />
<ol>
<li>Créez un compte ou ouvrez une session sur l’appli DoorDash ou sur DoorDash.com</li>
<li>Accédez à l’onglet Compte & Cartes-cadeaux</li>
<li>Entrez le NIP de votre carte-cadeau</li>
</ol>

DoorDash Canada - CAD

How to redeem: 1. Log in to your Steam account. 2. Choose “View my Wallet” under your profile name. 3. Click on “Redeem a Steam Gift Card or Wallet” to proceed. 4. Fill the blank field with the code and press “Continue”.