You read that? I can get either in a day or two if I need it, they want much longer-term planning though.

For a vaccination I'll call several weeks in advance. If I want an appointment before/after work I'll call well in advance, if I want something tomorrow they may say "11:30, take it out leave it", which isn't great for my work.

Don't trust whoever wrote what you read there. FUD scaremongers.