Charles Tyrwhitt are having a deal again, offering $39.95 per shirt with free delivery. They offer great quality shirts which are delivered in a robust cardboard box.
Shirts are all 100% cotton with complimentary brass collar stays.
In my opinion, this deal beats the 3 for $99.95 deal here, because you still needed to pay $12.95 for shipping with that deal (making it a minimum of $37.60 per shirt), but you stand to lose money in the shipping fee if you find the shirts don't fit and you decide to return them. However if you are confident that the shirts will fit, feel free to check out that deal too.
As with all Charles Tyrwhitt shirts, there is a free 6 month return policy (via Parcelpoint).
The terms and conditions state that the offer is limited to 5 shirts per household, but I have ordered more on their previous deal and it's been fine.
All you need to do to activate the deal is click through the link provided.
Their customer service is also excellent (and perhaps even 24/7), so if you have any questions, feel free to call them and be met with a friendly English accent!
EDIT: The code to this deal is stated above (UUAAY), however, the deal is not activated by inputing the code on checkout. It is by visiting the site through the link: http://www.ctshirts.com/UUAAY (or click on the link provided on this post)
Here are the terms and conditions:
The shirts for $39.95 offer applies to Charles Tyrwhitt's business or casual shirts originally priced at $140 and $160 and piqué polos originally priced at $100 and $120. Offer is limited to 5 shirts per household. Handmade tie offer prices are $39.95, originally $100 or $120, and $59, originally $170. The free delivery offer applies to one single order and applies to standard delivery to an Australian address only. The offer end date is Sunday 10th April 2016. Offer is not valid in conjunction with any other offers or vouchers, or on website clearance section. We reserve the right to withdraw, amend or extend this offer at any time, without prior notice. Strikethough prices where shown refer to original selling prices offered on websites www.ctshirts.com/aupreview and www.ctshirts.com between 30th Nov 2015 and 10th Jan 2016.
Whilst I do like the shirts, these seems to be the normal prices.
In real terms it isn't a real bargain imo