Sign in to the Amazon account that should hold the funds. Open Gift cards in account settings — that is where Amazon shows the merged balance.
Physical cards still need the claim code under the scratch-off; e-codes arrive in email. Redeem the code on Amazon, never on Checkout Saver.
If the amount is missing, confirm you used the intended account (household profiles are a common mix-up) before contacting Amazon support.
Browse discounted gift cards on Checkout Saver before big Amazon orders when listings are available.
Amazon balances live on the Amazon account, not as a PAN/PIN pair we could echo. Typing a claim code anywhere other than Amazon is how codes get stolen.
Amazon’s usual path is redeem-to-account. If you only want to inspect a code you do not plan to keep, use Amazon’s official checker linked on this page — not a third party.
In the United States they generally do not expire, but the code must be redeemed to the correct account. We do not hold or insure the funds.