She really must be stupid to not show the NOTH advent calendars being used, that she's likely been gifted or paid to advertise- maybe already sold, on the pile for the next tip run, or used for firewood. If they have come from a small business, the owner will be gutted at the limited exposure. And she probably wonders why the "work" is drying up.
Add to that the bless her, bless him and bless them when talking about her own parents, that small business, Garnier, or anyone else, and she really does talk like a patronising, blithering simpleton.
I doubt there will be any more books after the last big success and tour of three whole Waterstones, but if there is, the last one will hopefully be "Welcome back to Greyskull" where the boys can finally be reunited with the playhouse that they probably see 5 times a week anyway