The store doesn't wanna assist me as there customer, poor service experience

Poor customer service, i have experienced this 3 times in 3 different ackermans, first one in Umlazi mega city, where i went to shop there at 4 oclock the door was closed i asked for manager and they said they close at 4 but theres no notice stating that the only notice at the door says 5 o'clock i called customer service and complained didn't receive feedback,. The second time i went to buy a cellphone in Durban west street store, the cashier made me wait for 45 minutes yet people who came after me were assisted, i called customer service again complaining and my complaint was logged but till today no response. The recent incident i bought a Alcatel tablet costing R999 in umlazi mega city, then too weeks later it had a problem, i then sent it back to the store which they sent to technical, they told me they will call me after 20 days, the looting happened so i called customer service to inquire, they asked me my nearest opened ackermans, i then chose Galleria mall, they informed the manager that i will be coming through, the following day on the 5th of August 2021 i went to the store spoke with the lady manager and she tried to call head office for approval to give me a new phone, the lines were busy she then told me, she will call them and as soon as she gets hold of them she will call me to come through i then went home, friday the 6th i called the store for follow up a guy names Sanele answered he was so rude and arrogant to. Me saying if i need assistance i must come to the store, phonimg is not gonna help me, i told him thats not what the manager told me he then said well im telling you how it works you must come up and down the store for you to be able to be assisted, asked him i would like to speak to the manager he refused and i asked him where is your customer service rigjt now, he then responded by saying do i want the phone or customer service i then ended the call because i was so disappointed, on Monday the 9th of August 2021 i went to the store again and i was told head office is not working on a holiday, which means on the 5th when i left the store the manager did not try to call them again she said she will call them tomorrow Tuesday the 10th. Yesterday the 10th August 2021 i then called the store and askwd her because i don't want to go there the 3th time without being assisted, she said she will get back to me before the end of the day, and today os the 11th August 2021 i didn't receive feedback. I even told her about the rude employee she said she will speak to him when he comes back he just stepped out of which i also didn't receive any feedback concerning that. I really need help with the issues i am having with ackermans stores in Durban ?????