Unhappy first time buyer

I am a first time buyer on [URL Removed] I found a watch I was interested in and purchased it online on Sunday 14 Feb 2016 in the evening. I paid via credit card and received confirmation that my order had been paid and that I would definitely receive delivery of the watch on or before Tuesday 16 Feb 2016. On Monday 15 Feb 2016, I received and email stating that my delivery date would be on Tuesday 16 Feb 2016 between 8am and 5pm. I made sure someone was available at home to collect the parcel on my behalf. 5pm arrived and I double checked my email to make sure I wasn't incorrect, and still no delivery. 5:05pm I Called the call Centre and was told they would call me back as they needed to find out from the courier company as to where my parcel was. 5:45pm and no response. Called again and was told they weren't sure and that it will probably only come tomorrow 17 Feb 2016. No explanation at all. First time buyer to the site and not happy at all. Now I need to make sure someone is available, yet again, tomorrow and who knows if it will even get delivered tomorrow. Not impressed at all. Keen to explain and try make amends, [URL Removed]