Refund by Nandina Guest and Cottages

On the 11 November 2019 I requested a quotation from Nandina Guest House in Hazyview Mpumalanga.They have sent me an email with account number of Capitec. The account number was sent by Freda the owner of the guest house.I paid R4000 for booking of accommodation.To my suprise I received an email from booking manager indicating that the money doesn't reflect in their account. I have proof of payment and also my bank confirmed that the money went into capitec bank account sent to me by the guest house. I have been ****med R4000.00 and I got a message from the Guest House indicating that if I expose this legal action will be taken against me. All I want is my money back and for Nandina Guest and Cottages to take responsibility for this.Refund my R4000 I have worked hard for it