Charged twice for something I did not order - help

Apple charged me twice for a soundcloud subcription when I already have a soundcloud subscription.

I requested a refund, and they refunded one withdrawal to my bank.

And yes, the bank confirms two charges. Two withdrawals. Only one refund.

Using the automated refund request gets me nowhere. How can I get a person at apple to look into this.

I refuse to buy anything through Apple App store because they are fast and loose with my payment info.