ATAG One, Vacation setting and boost

We have moved into a new home with an ATAG boiler and controller. I have the ATAG One app and set the vacation setting for a holiday but the boiler still makes the hot water hot every night.

This looks like a fault but at ATAG UK have not helped me.

Also, how do I boost hot water please, does anyone know? If we have people staying, I would like to be able to choose to have the water heating on for an hour for example. Unless I go into the day and schedule, this does not look possible.

Thanks to anyone who can help us