Poor poor service

I hate to do this because I rather address the issue in store that posting on a public domain. I normally recieve good service at this shop until today. I purchashed the True Wireless Trainer Earpods from Vodacom Canal Walk. The 1st pair did not want to charge and was exchanged. It was a quick and easy process. Now when i opened the new pair that was exchanged, I noticed the charging block was damaged. I put it immediately back in the packaging and went back to the store when I had a chance. When i exchanged the 1st pair I was told that if i have any problems, I have until the 29 August 2020 to exchange it. When i went to go exchange it today, I was told they not changing it because the charging block is damaged. I told them it was like that when i got it. I didn't examine the packege when exchanging because i wasn't expecting them to be a faulty unit. The 2nd in charge assisted me but what a frustrating process. He said he wont exchange it because the charging block is damaged and that the supplier wont exchange it because they will say that I damaged the unit. After explaining that is how I got it, he said he is going to try to contact the rep. They said over the phone that why didn't I return it immediately. I stay in Durbanville so by the chance I finish work, Canal Walk is closed. So now they expect me to just accept it as is and if i got a problem, that I must come back when the store manager is in. He only gets back on the 24 August 2020. So what are they going to say now? Ask me why I waited to long again. Honestly speaking I actually have never been so livid with the service i recieved. I am a honest person by nature so don't accuse me of something that I didn't do. They made me feel as if I am dishonest and trying my luck. I am in customer service and I would never handle the matter the way that it was handled.