I want to part with some of my coins. Any recommendations where ?

I have been collecting South African coins and other coins for the past two years, building a diverse and interesting collection.
However, due to financial needs, I am considering parting with some of them. 
Despite my passion for coin collecting, I am finding it difficult to trust buyers, which adds a layer of complexity to the process. 

Does anyone have recommendations of trustworthy buyers that wont go and melt the coins or turn them into jewellery lol   
I live in South Africa. 

unfortunately, once you have sold something to someone, it is theirs to do what they want.

you'll find less buyers if you're worried they will melt them or something like that.

find the best price you can and try not to think about their fate…

Most coins do not get melted, don’t worry about melting. If they are silver they are usually worth more as coins.