Ripped

In July I was offered a contract with a device and data Sim, stating that I could only afford R250 but then I received 4 Sims not clearly showing which was the correct Sim, I activated all 4 to found correct Sim, this caused a huge cut of my pension. Now when I wanted to cancel extra Sims I am now told the for 24 months I have to pay. What a *******. I am only wanting to pay for device and the Sim data for phone of R250. I tried to cancel and was told I would have to pay upfront R2700 to can. Where will I get that. I am *****ed. The consultant that added that extra data never meantion that her name is Tiffany and has now blocked me on WhatsApp. Admit to your mistakes and cough up this bill.