Pathetic service from telkom staff and poor devices

So I have recently purchased the S24Ultra & the Pura90 Pro on contract from telkom. The reason that I chose these devices was due to knowing they are high-end and i wouldn't have any issues with them. However not even 2 months down and both devices battery capacity is pathetic. If the devices are charged to 100% in the morning upon leaving home,by 2pm the devices are already on 15% or under,going into power saving mode which the devices are barely used throughout the day . I visited the Gateway branch where I had purchased the devices from and the "technician" advised me all he can do is book the devices in for 2-3 weeks where everything on the devices maybe wiped out and they cannot issue courtesy devices. Yet he advised that this is due to the poor battery unit in device as theres nothing on the devices draining the battery power .Unfortunately my husband nor I have spare phones to transfer our stuff too and neither can we be without devices for 2-3 weeks due to our businesses. I called in customer service, speaking to an agent named Mogadi Malatji. She was polite at first and advised that telkom needs to give me new devices with better battery units . She then told me to wait while she checks what she can do . Upon her returning to call she advised me there's nothing she can do we must just do what the store says and go back go my point of purchase at store . I told her the reason I called in was because the store can only book the phone in and I cant afford for that inconvenience. She told me well thats what it is and there's nothing else she or them can do. Between both devices I pay almost R1800 and I am not prepared to pay so much for devices that are so pathetic and poor quality yet are advised to be high-end devices . I will be putting a stop order on my debit since my devices cannot be replaced.