Poor service

Ordered Garmin Fenix online expecting delivery in 7 days. After 7 days I enquired why tracking shows pending only to be told it is out of stock and I needed it for the weekend of the 26th February. I was told supplier will deliver the follow Tuesday the 1 March must they continue or cancel the order. I said please cancel and they acknowledge on email of the 23rd Feb. I saw it cheaper brand new on classified and bought one from person 2 days later. The following Tuesday they delivered a garmin which I have cancelled. I have emailed and called about this but a week later no response. I expect a refund of my money and they must come and pick up the watch where they delivered it as I cancelled this as they asked a week before delivery. this is poor poor customer service and I have been a member for many years and even kept it open when I had to join Discovery for work purposes but I feel Vitality will be a better service after this