Unhappy customer

This company is a ****. After refusing to take their product. The manager jumped in on the call and convinced me to take this product as it works different from the smart tv and told me I must take it and test it. After they told me i will pay 400 if i want to cancel. I then told them again i dont want this product what if i dont like it. The manager (phiwa) jumped on a call again and convinced to take it and that as long as i dont use it, i will not pay. Now i am trying to cancel and i am told to make a payment. Worse part they can not even transfer me to this Phiwa guy. I am really annoyed..