Failure to help with Double Debit Order!!!

In February 2015 my Debit Oreder did not go off, so I contacted House & Home to set up a Double Debit order for March 2015 wich went off as discussed. This morning I saw that they made another DOUBLE DEBIT ORDER for April without autherisation from me the customer. I contacted the Manager at House & Home Bloemfontein and told him what happend he then told me that I have to wait until the 8th of May for them to be able to help me. This is ridiculous, when the Debit order does'nt go off they call you within an hour to notify you, but when they take your money twice you as the customer have to wait till the 8th to find out if you can get your own money back. I am disgusted at the type of Customer Service I recieved.