Best answer by Mohammed
If you order before 5PM on Friday, it'll be delivered on Monday.
If you ordered it after 5PM on Friday up until Monday 5PM, it'll be delivered on Tuesday.
You can find this in the FAQ sections here: https://www.idmobile.co.uk/help-and-advice/product-delivery
I've attached a copy of the delivery times below:
EDIT: I've moved your topic to the section Plan types, upgrades & plan changes