[mothered]

As in not bother with wrong item and just do an EB/missing item? I was thinking of that as well but I was betting on the safe side, preparing for all possibilities so that  I have a plan

I always recommend to SE using the method you're most comfortable and confident with.

Both methods are well-suited, so It's your call.

Do you happen to know if Currys monitors in any way what is being put in its shipping boxes?

I know for a fact that Argos has CCTV cameras monitoring orders that're picked & packed, but I'm not sure whether Currys does the same.