G C has the easiest answer, do it from your phone.
There should be a phone number on the back you can call, or go into the store and they can check it for you.
you can add it to google pay as a pass or gift card and let them update the balance... it worked for hannaford you might need a barcode. Take a picture of it run it through Google lens,Bixby or any assistant and it might help you.
Dolores.... you can go to the website of the card... like Visa... MasterCard...etc. you should see where it says check balance.... click that area.... enter card info..... you should see your balance.....
Internet checking is too 21st century
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