I went to cash crusaders at sammy marks square on the 17th of April at around 11h00 or 12h00 whereby I was busy going through the aisles then I saw a 4 bar Dixon heater going for 124

I went to cash crusaders at sammy marks square on the 17th of April at around 11h00 or 12h00 whereby I was busy going through the aisles then I saw a 4 bar Dixon heater going for 124.90 then I asked the sales person to test it for me so I can purchase of which he did.Whilst we trdtrf it and was well functional I then went to the till to pay only to my surprise it charged R399.00 so I asked the till lady to assist with correct pricing of R124.90,the sales guy who helped did go with the till lady to confirm the pricing I saw on the shelf which correspond with the heater model then I was told by the store manager or the lady who was doing marking of pricing whereas the sales guy was told he cannot sell it to me therefore he must go to the stockroom or office to change the price to R399.00 then I asked how is that possible but the lady was rude.