BFL bad customer service

A BFL representative (Michael Uys) came to my workplace to sell their product. I was then interested in their TV (which I was told it's a smart TV, whereas it was not) speakers, laptop and they said the tablet was a gift for my purchase. They promised to deliver the things I purchased when I finish with the instalment. They then debited 2 instalment. I then communicated with them that I dont need the TV since it's not smart and I no longer want the laptop as I was presented with a laptop. By my child. However, I'm willing to continue with my purchase only for the speakers, I then spoke to Angelique Dell, via email that they have not debited after the changes I made. By that time I have already paid R4000. I was then informed that on charges for the tablet which I was told was a gift and also charging me for their representative, something I was never told about. The speakers I have never received them. I am willing to return back their tablet since it's still sealed.