title: Payment failures - Secure4.arcot.com didn't send any data
body: <p>I use wordpress with Woocomerce. I've noticed that customers wishing to make an online store payment with a Santander or Nationwide Debit card can't confirm their orders, giving a <code>&quot;Secure4.arcot.com didn't send any data&quot;</code> message.</p>
  <ul>
  <li>The Pending payment order still comes through to my orders. The cards are not debited.</li>
  <li>Customers using Barclays Debit cards, for example, have no problem at all.</li>
  </ul>
  <p>I'm not too technical so I wondered if there was anyone who could help with this please, it has only started to happen in the last two weeks.</p>
  <p><strong>Error that is shown on screen:</strong></p>
  <p><a href="https://i.stack.imgur.com/rps20.jpg" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/rps20.jpg" alt="" /></a></p>