Coupon discount not visible at checkout

The value of the discount is not showing at checkout
Name SKU Price Quantity / Update Subtotal
Proskins Slim Ladies 3/4 Length Sleeve Shirt
Size: UK_8
Colour: Black PSs104 £44.00
£44.00 (including 20 % tax)
Subtotal: £44.00

Total: £38.72
Tax Total: £6.60

This is what the shopper gets after inputting token. There used to be a field showing the value of the coupon but this has disappeared after upgrading to Pro 1.4 from Pro 1.3

If you want to try it see www.proskins.co.uk (live site) a coupon that can be used for testing is njrclients. (also works for real)

Are you sure something else was not changed? AwoCoupon upgrade does not alter your virtuemart files, which is what seems to have happened.

I was using one page checkout but for some reason if stopped calculating shipping for none UK orders. At about the same time as AwoCoupon upgrade I switched the VM default checkout. Can you remind me where the controls for displaying coupon discounts are in the default VM site configuration.

The coupon appears as expected in the sales order just not at the checkout
SubTotal : £100.00
Coupon Discount: - £13.67
Shipping and Handling Fee : £2.50
Tax Total : £14.39
Total: £86.55

the basket is displayed in template
www/components/com_virtuemart/themes/[default]/templates/basket/basket_b2c.html.php

and for the confirm page
www/components/com_virtuemart/themes/[default]/templates/basket/ro_basket_b2c.html.php

The variables for these pages are defined in
www/administrator/components/com_virtuemart/html/basket.php
www/administrator/components/com_virtuemart/html/ro_basket.php