Seems like they’ve changed their policy. Went in today and handed over the watch, they claimed that I would have to purchase the series 7 there and then, that they would generate a code to be user over the till to deduct the price by £100 and could not offer me a gift card. Incidentally they had no watches in stock anyway so they said best they could do was to place a backorder. I took the watch back and left the store.