Latest version broken WooCommerce Payment Gateway

The latest version of the plugin has broken the WooCommerce payment gateway, orders are paid for by the customer and then the booking is never created. On a production site this has caused us a lot of problems. I’m into my third day of waiting for a response to my support ticket, the live chat doesn’t appear to be monitored apart from a couple of times a day when you get a belated apology for missing you – here’s hoping I get a response here.