Sounds like you had a one off their Jewel and no idea who you were talking to as everyone I spoke with on the phone and there knew that you could order salt at the discounted cost. I got great deals on the anthias at 20% off and snails at 50% off and they were marked as such. As well, if they are out of salt, then they could have ordered you some at the discounted price of $35 for IO RC if you paid while there, which is a HUGE discount when you are buying 6 buckets. At least $200 in savings right there. IIRC there was a limit of 6 per customer, however, some people go with their spouse and family and each get 6, there is no way of BA to know who is with who. Also most of London and surrounding area goes there boxing day to get salt, it sells out quickly, I think they only had 40 buckets of regular IO left at 1pm, no idea how many they got in of IO RC or IO. Pretty much everything in the store was discounted, I was not looking at prices though, I was looking at the stock and afterwards for the prices and a bonus of a discount afterwards.