2 For Price of 1 / 50% OFF on Qwertee: Site Error: Code Works Repeatedly

Hi Guys,

I posted this deal the last time it came up and it seemed to be popular so I'm doing so again. Basically Qwertee have sent me a mail offering me a 2 For Price of 1 / 50% OFF code for the next week only if I come back to the site (I've not bought from them in several months). Last time they did this I posted the code here and multiple people could use it, have not tested this but I assume it's probably the same. Their email says:

Anyway, I thought it was worth a mention here as it's the cheapest prices I've ever seen there for tees where you pick the designs. I've bought nearly 30 tees there over the past few years and have been very happy with their quality for the price. I've had one or two orders take a while to arrive so they can be a bit slow, but always been happy with what I've got in the post when it arrives. Free sweets with every order too is always a bonus!

Hopefully of intereets to some of you.

£3.75 P&P if you order 2 tees