Thanks for your reply. I did remove all other plugins apart from WooCommerce, even deleted them. I have re-checked that WooCommerce is the latest version, but the problem persists. I have no more time to spend on this, so I have written a small plugin to cater for the specific case for which I was using your plugin which seems to be doing the job.
Cheers,
Trevor.
Thank you – that is working 100% now. Thanks for your amazing fast support, much appreciated.
Cheers,
Trevor.