Charge for a courtesy car when new car in for warrantee work

[Benengo]

The boot on SWMBO’s Kodiaq (less than 12 months old) is refusing to unlock, so she’s taking it into Skoda to get it looked at. They say they’ll need it for the whole day as it is the second time it’s been in for this fault and the first time it was no “no fault found”.

Apparently they have just told her that if she wants a courtesy car for the day we need to pay for it. Does this sound right? We’ve never owned a new car before so have never had to get warrantee work done!