Refusal of Refund

I bought a remote at the shop at Mall @Reds. I was assisted by a gentleman by the name of Lucky, he is the manager of the store. I was told that they won’t not be able to reconfigure my remote and I would need to reconfigure it at home. Upon arrival I realized that I do not actually require the remote and returned it the next day. Upon returning the remote I was then told I am not allowed to return it because I bought the right remote. I then ask why I can not return the remote and I was told because it’s policy. I asked to see the policy as there was nothing on the walls or slip that made mention of the no return policy nor did the manager make mention of it on the day I bought it. He said they do not have a policy written anywhere but it is at head office. So I asked how can they then say it’s a policy if it is not in the store. I was then told that that’s the rules and I should complain to head office if I would like a refund. I then emailed my complaint to head office on info@kitweservices.co.za which I was told the same thing and I also told them the same thing that I did not use the remote let alone unpackage the remote. They then told me that I can return to the store and get my refund as a result of the goods still being in a the condition that I had bought it. Upon my arrival Lucky knew nothing and I showed him the emails that I had with head office as he had directed me to, but because there was no name on the email from the sender he refused to take the remote and give me a refund as he said the money would come out of his pocket. I emailed back to head office and now I am being ignored. I am at a loss for words because I do not know how there is no return policy in the store and when I get told to raise my concern with head office they tell me to go get my refund and after that I am still being blown off to not get it