Cancelled product, still waiting for Telkom to collect

I ordered a mifi product using Telkom's online service. The consultant who called me to vet my application and explain the product to me guaranteed that this product is indeed a portable/mobile modem and even checked the areas I'd be travelling to to see if I will have connectivity there. The product arrived and it turns out it's a fixed modem that needs to be plugged into a wall socket for power, etc. It was delivered on 30/01/2018. I called in the very same day to cancel this product as it is not what I wanted. I believe I have a 7 day cooling down period after receiving the product. The girl I spoke to when I cancelled was Roxanne, she informed me that there is no ref number for the call. She told me she would arrange collection. A week later another consultant calls me trying to upsell me. I let her know that I will have to take my time to decide on a product suitable for me and I will place that order when I am ready. I asked again that she arrange someone to collect this product, which she said she will do. It's almost the end of Feb and this item has not been collected and I haven't heard from Telkom again. Before this ends in a story where I am charged for a product that I a) don't want and b) am not using, please sort this out. Thanks.