Money first, Customer last

I did an online order on Monday 02 Dec, for the 1st time. Site advertised a cyber-Monday discount. At check-out I did not receive the discount. I enquired and was told that I supposed to have entered a certain code, which was not clear to me on the site, given my 1st time here. Seems there is no way of reimbursing me. Unbelievable! Also there is no free delivery, irrespective of the amount spent. Thats my last shopping experience with Mr Price. I am disappointed with the way they do business.