Bad customer treatment & service

Bad customer relations. Had been going to the store for 3 days just to hear they out of stock of certain items. Shop assistants ask you to contact the store so that the customers don't have to drive there unnecessary, but tried contacting them on both land and cell number no one bothers to answer their phones. I've tried phoning from 16h00 - 16h45 on 10 Jan.2022 that is till 15 min before closing time. On the 11 Jan.2022 I tried calling numerous times from 9h00 when store reopens to no avail so once again we had to go to the store again just to hear the stock is still on- route the assistant could'nt even tell us when about it will arrive since they have been telling us every time the stock is on it's way. The store manager spoke very unprofessional and rude to the customers whilst people are standing in long lines for hours. The store manager also said they can't answer their phones as the store is busy. So we want to know why will you have people employed that say you must contact the store and then a store manager who say they don't have time to answer the store phones as they are busy. Really bad,unprofessional service since they the only walk in store to sell Curro school items.