Bad service at Shoprite Roodekop

I would like to complain about a very bad service i got at shoprite Roodekop from its manager, I paid using my bank card and they deducted twice the amount I was supposed to pay for my goods so when I got home I received a message from my bank stating that I've been double charged I went back to the store raised my concerns with the manager he gave me a stinky attitude instead of helping me he said I must leave my card and my Identity document so that they could be able to reverse my money I refused because I have never heard of such leaving such important documents to a stranger.. Im disgusted by such attitude.