change line 81 - 83:
$this->Shipping[] = new WA_eCart_Rule(urldecode("Shipping%20&%20Handling"), true, "WAEC_eCart1_ShippingHandlingElsewhere");
$this->Shipping[] = new WA_eCart_Rule(urldecode("Shipping%20&%20Handling"), true, "WAEC_eCart1_ShippingHandlingElsewhere");
$this->Shipping[] = new WA_eCart_Rule(urldecode("Shipping%20&%20Handling"), true, "WAEC_eCart1_ShippingHandlingElsewhere");
to:
$this->Shipping[] = new WA_eCart_Rule(urldecode("Shipping%20&%20Handling"), true, "WAEC_eCart1_ShippingHandlingElsewhere");