Clumpy Gloot Protein Water

I purchased the Gloot Protein Water - Peach Iced Tea via Takealot. On first use, the product was clumpy when mixed. My daughter was terribly nauseous after consuming it. I attempted to return it to Takealot. Their return system confirmed Return Eligibility and the product was collected. After it arrived at their facility, they have refused to refund me, stating the product is a Non-Returnable Item and they will be returning the product to me. I will now be stuck with a product that was clumpy, made my daughter nauseous and the product was then sent to Takealot so I had no control of how it was further handled. They cannot guarantee the condition of it. In hindsight, i should have contacted Gloot directly and not returned the product. I did place a product query on Gloot's website with no response to date.