Earlier today I asked them if they could swap a pair of Oliver Peoples sunglasses I purchased on sale last night with a different colorway that was restocked today. Being that they were exactly the same price, and same model, I thought that they'd be able to directly do the swap without having to cancel the first order.
The customer service responded and said I'd have to cancel the first order and specifically repurchase the other. They said they placed the new pair in my reserved items menu and that it would be reserved for me for 24 hours, giving me plenty of time to go through with the purchase.
Knowing this, I had them cancel the first order, and planned to purchase the second pair after work. When that time came, it told me that the pair that was supposedly reserved for me was actually sold out.
I emailed them and they said they made a mistake in regards to the available stock, and that they were indeed sold out.
The best part is that the first pair, that I originally had cancelled, was also sold out before customer service responded.
So, needless to say, that irked me.
Adding complexity to an online transaction during deep discount sale is a recipe for disappointment.