Mambo Sandown western cape manager very rude

Went to buy a container marked R29.99 and when I got to the toll, manager in the Sandown western cape branch told me very arrogantly it is the wrong price, must be R129.99. I insisted to get it for the marked price, but he refused with the word 'I will not give it to you for that price.' no apology nothing. They are very rude also forcing customers to go out so that they can close the store. Very very bad service.