Wrong contract minutes

I'm frustrated by the incompetence of your contracts department. I ordered online in January a Samsung Galaxy Note 10 lite with 3Gig free me minutes for R549 as seen on the screenshot below. What I received was the right device but wrong contract minutes. They sent me a 1,5gig instead. I called your call center on the 11th of February with *** to inform them about this issue, they told me that the contract was still in the cooling off period and they didn't pick up on the system, details as it was going to take 2 weeks to be loaded. Now I'm being charged R549 for a 1,5gig, they said that all online contracts are recorded, I want a copy of my online contract recording so that I can take it up with Ombudsman. See below screenshot I took of the device and package ordered.

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Please let me know where I can drop off this device if this not fixed ASAP in the next 48 hours.I will not let this slide. Fix this or come fetch your device and I will cancel the debit order if not resolved within the next 48hours