How to Fix Crypto.com Card Not Working ‘Declined by Issuer’ Error?

When you see a “Declined by Issuer” message on your Crypto.com card, it’s almost always due to one of a few easily resolved issues. First, check your card balance and spending limits—if you’re low on funds or have exceeded daily/monthly top-up thresholds, the issuer may reject the charge. Next, double-check that your card details and billing info are correct, including number, expiration, CVV, and address—small typos can trigger declines.