Awaiting refund for a month now

I purchased a reflexology sandals from takealot only a size 5 was available. Thought 1 size fits all if made in China. It does not fit I logged a return. They then tell me after numerous calks and emails that my return was declined due to break of seal. How do u try something if u can not open the box. Then the next excuse was i stated i chamged my mind, which i did not say at any point. Bow almost a month later they still have the Sandles and my money. No one gets back to you. I will never order from them again. After sales service is appalling