[mothered]

I prepared a box with 3 bottles of water
it looks like someone opened the box, took the consolle and put in the bottles.

I don't know of anyone who'd have 3 bottles of water on hand - there's no reason to for personal use.

Go for one bottle.

But the consolle weights 4.45kg, one bottle is just 1,5kg….they will register a low weight from the beginning….(even on the label you can read “5kg”)
I thought that a driver stays out all the day for work and so could have a couple of bottles with him in a backpack (i saw one of them eating a sandwich on his van 😄), or stop and buy them everywhere (this is maybe the more realistic)
Or bring bottles with him on purpose to do this thing.
Or someone that works in a warehouse could even take them from the trash bin and refill in the bathroom maybe…
One bottle is more realistic but there is a weight problem….

There are 4kg+ water bottles available.

Your approach may work, but do expect a lengthy claims process.