There are no gurantees. You are cutting it very close. I know that large companies do sometimes get things out on weekends and things can often get shipping on a Saturday or Sunday and still get delivered on a normal Monday. But officially, there is no mail service on Monday, so it's best to assume that nothing will happen until at least Tuesday, with the earliest possible delivery being Wednesday, depending on where you are.
Also, we really have no idea of how long Public is currently taking to process sim card orders. They could be doing it same day, next day, or 3 or 4 business days. So, you need to add order processing time to the shipping transit time as well.
Shipping transit time depends on where you are. By Xpresspost standards, Mississauga Ontario to somewhere such as Vancouver, Quebec City, Edmonton, Winnipeg, Calgary, etc. (major cities) takes 2 business days. Assuming shipping out on Tuesday, that's barely arrival in time (but it could also take a day or 2 day extra for Public to process the order). Mississauga to Toronto, Windsor, Montreal, Ottawa, Kingston, Barrie, London, Ktichner, etc. should take 1 business day to arrive after the sim card is shipped. Shipping to many places by Xpresspost in Canada takes 3 business days if the destination is even slightly outside a major city. Then, we also have very rurual and remote locations, some of which Xpresspost only promises delivery within 7 business days.
You're just going to have to cross your fingers and hope for the best.
