We have a cleaner who comes for a couple of hours a week. Sometimes she brings a colleague and only stays an hour. Today she brought her teenage son - said he was going to help her as he’d finished his GCSEs. I assumed he’d just be hanging around with her but she then only stayed for the hour and charged me for two (ie she charged me for her son). He worked hard and didn’t do a bad job - not perfect but adequate - but I’m not completely comfortable with paying a 15 year old the same as I pay his mum. I’ve paid and won’t say anything as I’m hoping it’s a one off. But if he comes back next week, would it be unreasonable of me to gently suggest that I’d rather he didn’t come the next time?