Pathetic service and brand

My name is Chantal, I took a contract with telkom for firbe and WiFi, they sent me a router which is called d-link and my price was 599r fixed, the contract started on the 21/9/23 and about 2 months later starter having problems with the router it would just stop working, we would have to put it on and off then call telkom customer service for assistance, this Saturday the 06th of April the power just went off on the box I called telkom cause I already had a case number opened and they tried to assist me by telling me what to do, then they eventually decided to take the d/link router in for repairs. On the 09th April the router was collected, I sent the charger which was in tack, and the four antennas, today I received my router back with the charger opened up and the mother board blown up, and on the repair section says customer to replace charger, I called telkom I spoke to Raymond asked if I could speak to the manager, he said the manager is in a meeting and will get them to call me, I then called the number that was on the repair form, and a foreign white male answered and told me that I have to buy a new charger as it doesn't fall within the warranty, I explained to him that why should I buy a charger as when I sent it for repairs it was not opened or damaged but when I received it, it was open, so I said they could off blown the charger and sent it back as its open and in pieces, he said to me I can do whatever I want to he don't care, he not giving me his name, and I must take it up with telkom or go buy a new charger, I feel we pay so much for the products, we as customers deserve to be treated right, and get the service we pay for, telkom even increased my speed without informing me, and now I have to pay 650r every month for something that doesn't work most of the time, the company D/Link that is used by telkom should be stopped as its the worst brand ever, people be aware of what you are being sold, ask questions, take down names as nowadays companies just want to make money out of us. Telkom and D/Link should never be used.