Failed or declined transactions

Transaction failed or Transaction was declined messages can happen for several reasons: 

• The WI-FI connection may be off or unstable. 
• Card reader connection timed out.
• Inserting/swiping the card timed out.
• Waiting for the PIN/signature authorization timed out.
• Damaged card (chip error, magnetic tape damaged).
• Unsupported card type. In this case, the customer needs to use a different card.
• Insufficient funds.