Very poor service and most unfriendly staff

Received very poor service, if any, and most unfriendly cashier with NO respect for customers. Was on my way to purchase about R250 worth of goods. Took a can of dry lemon and cashier informed me it is not scanning. My son went to get another can with same result. She then said that she cant help me with the dry lemon. I rep**** that i would like the dry lemon. She then told my son in a respectful manner to fetch her a can of coke. I said to her that is no way to speak to a customer nor asking him to assist you with something. Another lady came from the office to assist and i tried to speak to her but she just ignored me and spoke to cashier. I told both of them that you dont speak or deal with customers in that manner . I then told them to cancel all my good. I took the cashslip that was busy printing and left. Not to ever return to that service station or even that brand of Oil Company.