Bad service with the Woolworths difference

Dear Woolworths We have just had one of the worst online shopping experiences we have ever had. We ordered a Dyson V10 Absolute on the 28 November 2020. The Woolworths Dispatch note reflects that it was ordered on 30 March 2020. It arrived today and to our utter disappointment and disgust it was cracked and full of scuff marks. It is clearly and definitely a used machine which is why Woolworths got the purchasing date wrong. The previous person purchased it on the 30 March 2020 and then returned it. It's not a new machine! This is quite clear - Woolworths re-boxes and sells used vacuum cleaners at a discounted price. We phoned the Customer Care line and it was no real help at all. The process kept putting the responsibility back on us to collect a replacement instead of Woolworths delivering a replacement, something for which we had paid. We would need to wait until the end of the week to hear what would happen. We have tried phoning numerous Woolworths stores to see if we can get it replaced without any success. As an aside this was an expensive gift from me to my wife for our 43rd anniversary! What exactly is the 'Woolworths difference'? Is it simply bad service?