DSTV debited account twice and gives no support

On 29 June 2020 my husband's DSTV account was debited twice for no apparent reason. This morning 30 June 2020 my husband phoned the call centre to find out why his account was debited twice. The lady from the call centre stated that she doesn't know why it was debited twice amd that she cannot help him. After asking her what he can do, she said she doesn't know. He asked to speak to someone in a higher position but she stated that she cannot give a number but can only send him an email. She also stated that she doesn't know when he'll be back in contact with my husband or if that person can even help him with his problem. Now my husband's money has been taken with no help. We have a reference number for his call. His new debit orders must go off on 1 July, but this second debit order is of DSTV is going to make his credit bad because his other debit orders won't be able to go off. Who can help?