Teljoy Customer Service

I accidentally made a duplicate payment on my rent to own contract on 24 and 25 July 2021. I've sent them a request to refund me the duplicate payment because I work on a strict budget and had debit orders going off on the 30th. They sent me the necessary form which I submitted with proof of the payments as well as my bank statement to confirm payment details. Since then I have sent 12 emails requesting an update on when the refund will be made and they do not even bother to reply back. My bank account is now in a minus because of a debit order that couldn't be honored and I get charged interest daily on it. I am extremely disappointed in the lack of service and just plain common courtesy of attending to my dispute.