Edgars does not package items "cheaper by the dozen" as expected

On 27 February 2024 I purchased an Edgars branded 3 pack Boxer shorts at Edgars Canal Walk for R280.00. I was in the queu to the tills when my wife called me to check prices of the same boxer shorts, but in single pack. The price was R80 each equating to R240 for 3 single pairs of exactly the same boxer shorts. Wow definitely not cheaper by the dozen at Edgars. I sent an email to *** which was promptly answered regarding my other queries, but nothing regarding the pricing. I visited the store over the weekend, checked the prices again and no change. So it seems Edgars is out to con its customers into thinking it is cheaper to buy a 3 pack of exactly the same product with exactly the same amount of packaging used...