All information is checked daily (April 2019) from the official Missguided Delivery Page at Missguided.co.uk.
Basically, if you order before 10pm Sunday to Friday, and the order is over £100, you'll get Free Next Day Delivery from Missguided. Otherwise it will cost you £2.99 for orders under £100.
If you order on a Saturday you'll get your order on the Monday (because they don't deliver on Sunday OR Bank Holidays!).
If you're looking for a free delivery discount code then be sure to checkout their main Missguided discount code page.
If you're ordering between 10pm and Midnight then it costs £6.99 and delivery is made between 6pm and 10pm the following day. So, if you order between Sunday and Friday (they don't deliver Sunday and Bank Holidays), you'll get your item the following day between 6pm and 10pm.
Standard delivery costs £0.99 (or FREE on orders over £60) and takes a while (3 to 5 working days) and are NOT delivered on Weekends or Bank Holidays.
If you REALLY need that thing you can order before 10pm on a Saturday and get it delivered the Sunday (day after). This costs £5.99 or FREE if your order is over £100. WARNING: Don't order it after 10pm and select Sunday delivery, it will arrive A WEEK AFTER (Sunday after).
Click & Collect costs £1.99, and there is no way around it to get it cheaper or for free. Orders must be placed before 9pm and they don't deliver on weekends or bank holidays. If you order on Sunday to Thursday, before 9pm you should be fine to pick it up the next day from ASDA, Collect+, toYou and Doddle.