Unauthorized payment taken

We done an online booking 1/12/2017 to stay in the hotel and paid with our credit card R1328.57 The provider is amoma.com.hotels. We stayed over 31/12/2017. On 30/1/2018 without contacting us or consulting with us Emperors debits my credit card with R2100.00. After investigating Rebecca state amoma is not paying them. I was promised we will be refunded and up until today this is not done. Why should we be in the middle and pay twice for the service. The matter will also be revered to the Ombudsman to recover our money.