Duplicate billing

I had the game Wizard of Oz and purchases were made through ZYGNA. I noticed that I was being double and triple billed even at times, I noticed that I was charged $560 in a matter of two days. I called Apple and they told me that yes there was duplicate billing and that I would receive a refund. I have never seen the refund I don’t know what to do. I think that it is a scam when they try to lump all your payments together. I think that that just shows you that they are scamming you. I do not recommend ZYGNA Games as this is not the first time I’ve had issues with them. They will try to rip you off and they do it and get away with it! It’s not right and it’s not fair!