Talkom ripping me off!!!

I had puchased a **** ton of data from Telkom in October, So i wake up on 11/11/2019 and I could not connect saying im out of bundles. I go to the website to check my balances and my balance was still 11.41 GB anytime data expiring on 04/12/2019. I call the call center and spoke to Nosipho Luthuli who blatantly told me I dont have any data I need to buy more. After placing me on hold 4 times going back and forth she finally asks for a screenshot. I sent her the screenshot via email showing my data balance and she acknowledged my balance but still maintained that her system shows I dont have any data. I asked her who's at fault and she refused to answer. Giving me horrible service with her sighs because I wouldnt accept that she's telling me I dont have data when their website clearly said I have 11 gigs.. Do you know how much 11gigs is worth??? I feel like im being **********, being forced to purchase more data when I clearly still had plenty.. To top it off I ask to lay a complaint and she tells me they dont have a complaints peocess or department.