Usually, card or PayPal payments are declined due to many reasons. I have discussed all the reasons below;
Bank Declining the transactions:
Sometimes, banks decline the transaction as you may ordering from us for the first time. In that case, you need to call your bank and authorize the payment.
Incorrect billing address and phone number:
You need to make sure that your billing address should match your payment details.
Credit Card Limit Reached:
You need to check your credit card limit and see if it is reached or not.
Wrong Credit/Debit card number:
You may have entered the wrong credit or debit card number.
PayPal out of Funds:
You PayPal account may be out of funds.