There are a few reasons why your bank might be rejecting Coinbase. The first reason is that your bank might not allow Coinbase transactions. This is because Coinbase is a bitcoin exchange and some banks don’t allow their customers to buy or sell bitcoins. Another reason why your bank might be rejecting Coinbase is because you might not have enough money in your account to cover the transaction.
If you’re trying to buy $100 worth of bitcoins and you only have $50 in your account, your bank will probably reject the transaction. Lastly, your bank might be rejecting Coinbase because of fraud concerns. If you’ve been making a lot of Coinbase transactions recently, your bank might think that you’re trying to commit fraud and they’ll reject the transaction to prevent you from losing any money. If you’re having trouble with your bank rejecting Coinbase, you can try using a different credit card or transferring money from another account into your account to cover the transaction.