I went to the pro shop after I saw the advertisement for 20% off. I did not see anything on the clubs, so I assumed they would just be discounted at purchase. Now I see the club I purchased is on sale, it was supposed to be, when I followed the link to flash sale in the first place. Please refund me the 20%. You can see what time I purchased it..
Contact customer support, I'm sure they'll fix it for you.