NO ASSISTANCE TILL DATE

I purchased a tablet in December from Telkom mobile via Sell Direct. It was only delivered 3 weeks later, the sim card was faulty. I was not not happy with the product as well. contacting the agents, I was told that I can return it but have to pay R2000. This is the first time I've heard of this considering it was still brand new and no-one informed me of any of this. I recently purchased a phone from MTN direct and the consultant said if i'm not happy I can return the phone within 7 days and they would cancel everything. No such policy exists with telkom mobile as it was \second hand"after been opened. So now i'm stuck with this"