Have 5 days to return purchase with no response

On Monday the 14th of December I purchased R7,000 of goods from a promotional stand in The Blue Route Shopping Centre, Retreat, Cape Town. After some thought I decided to return the items as one of the items was a gift and I was advised that it would not be used (it was also an impulse purchase). I e-mailed the company on the 16th of December, as their policy is that you have 5 days to return items but must contact the Customer Care Department first. The e-mail went unanswered so I forwarded it again on the 17th of December. Still no response. I then contacted them telephonically on the Friday the 18th of December and was told that my query would be sorted. I still have had no response and now the 5 days have expired.