Treated like a complete idiot

I went on their website and bought a pair of DJ CD players - or so I thought. Technical problems their end prevented both of my credit/debit cards working, it would not connect to the 3 D secure screen and they would not accept my payment, nor would they accept payment over the phone. The items were in my basket whilst I was going back and forth with the store and my card issuers to try and identify the problem...which of course was their website, but they at first denied this.

Then the CD players disappeared out of my basket, and into another persons! At that point, after contacting their Levenshulme store again for the umpteenth time and complained as I had been the first person to try and buy these, "Riz" confirmed that their technical team had identified a fault connecting with the 3 D secure payment stage and that this other person couldn't pay for these either. I then said that I was very worried that I had been trying to pay for this item for over an hour and making numerous phone calls, helping identify a problem on their website, only for it to then be fixed and someone else then being able to buy them from under my feet. There was talk of taking the item off sale or refunding the new buyer if the payment went through. And of course, due to me telling Cash Converters of the problem, they got it fixed and this other person was able to pay in the end and they left me high and dry without a care in the world, after spending 2 hours and £10 on phone calls to try buy the items myself as I had got there first. I will never see a deal like that again and they couldn't care less despite me being there first and helping them fix their website, which in turn helped someone else get these over me.

Thanks a bunch