Clicks Rosebank is ****ed up

I bought a usb stick on the 26/09/2018,I went home and tried to use it however it kept prompting me to format however the format was not completed.Returned to clicks the next morning,found Fikile (a manger).I advised her of the problem before she could even try and understand herself she said that they cannot assist.When I asked how can they not she asked a teller what must she do another staff member told her to speak to Dominic.Before she leaves to find Dominic she says i should bring my computer to show her.If I was a child I could damn understand that I could be treated as one.She goes on to ask if my computer has a virus,how the hell can it have a virus if it has been tested on a laptop and multiple computers.Can the manager not try to understand even if she has no idea how to do anything besides authorise.She goes to Dominic for a long time leaving me waiting not even the courtesy that she will be long,we all have work to do and no time to stand and wait for a illiterate manager to pass my time.Finally after waiting for too long she is strolling from the back with someone else,no common courtesy to think someone else is damn waiting.Fikile than continues to tell me it is a old USB and they cant help,how the **** is something that was purchased yesterday old? No but Miss Sandisk doesn't even take the ****en time to listen.I walk away telling her that I will be contacting the customer care and she calls me back to say she needs to take a picture of it.On her way running to wherever she takes USB selfies she says she needs to "save herself".I wonder save her from who? Do I look like a villain? She cannot be a manger with the absurdity and lack of communication she displays,fine its your company policy to be rude and not help people? So i get back to the office and look at my slip properly I was also freaking overcharged for the Liqui fruit special,the special clearly states R25.00 for three cans but I'm damn billed separately for each. So besides being overcharged,being sold a faulty product and being rude clicks make me seem like a ****ing ********. Clicks in Rosebank mall needs a ****ing wake up call.Its so usual when you work in an see a special to be overbilled,if its not questioned well hard luck for you. I will make sure that for the R129.99 and some rands I lost that none of my family or friends will go shopping there.I don't need more people ********** by a bunch of pansies with a stinking attitude.