Poor Customer Service

I have never made a mistake in purchasing an expensive fragrance before but this one time I did and bought eau du toilette Valentino at Edgars East Rand Mall. Unfortunately, I only realised my mistake after tearing the wrap off. I took it to the store closer to me, Centurion Mall and they explained that they cannot take an opened item and therefore I must return it to the same branch I bought it. I took it back on the 29th April and the store manager, Derek told me that they cannot refund an opened item but he will try and find a resolution as the fragrance was never used but he never did. I even had to make a purchase at superbalist on the 30th March for a CK Euphoria 100ml edp with order number ***7. I have been a customer of Edgars for decades and I have, in the past purchased brands on sunglasses too (bvlgari, Tom Ford, Ray Ban). I have been buying Gucci Flora 1966 through Edgars until it was discontinued. I don't want a refund, I just want EDP for crying out loud. Please ensure your staff is able to "spell out" the terms and conditions on fragrances. You don't make it known to customers on your return policy for fragrances let alone train your staff to explicitly inform customers. The till slips don't mention what your policy has to say with regards to fragrances and now that I simply want a fragrance of choice, I am being told of the policy that exists on a website. This is disservice on a serious note!!!!