Bit of a boring one everyone but still just wanted opinions 
A few hours ago I purchased a gorgeous watch as my Christmas present from my mum. Spent all day trying to decide with her sat next to me until I then decided on "the one"
It was already on offer on amazon for £82.74 instead of £165 so we was both very happy with the price and we purchased along with express delivery
I have just gone back onto my Amazon account so I could gaze at my beautiful present, only to find out that in the space of a few hours since I ordered that it was now showing up at £60 
I double checked and it's the exact same retailer etc etc
I know it's £22 but that is A LOT of money for us and I'm bloody lucky enough my mum is buying me such an expensive watch as I feel bad enough already
Was ibu reasonable to message the retailer about this and enquiring if they could ship my order for the price they've just changed it to? Or is that really cheeky? 
Tbh my plan if they say no, is to just cancel the order and reorder it again
I'm just gutted they've cut it down in a matter of a few hours
AIBU?