Hi, kennethiredale.
Let’s check if this has something to do with the browser by using an incognito or a new private window. If you’re able to file VAT return successfully in this gateway, go back to your old browser try clearing its cache or use a different one. There are times that the overloaded files stored in your browser can cause issues like this.
Though, if the same thing continues, it would be best to contact the phone support team. They have tools to check the reason why you’re unable to file VAT return.
Here’s how you can reach them:
- Click Help at the top.
- Select Contact us.
- Provide a brief explanation about your concern.
- Click let’s talk.
- Select Get a callback.
Feel free to let me know if anything else comes up.