CREDIT CARD *****

On 3rd December 2015 I purchased goods at Estorial Books, Cresta, for R319-00. On 5th December 2015 they put my card through again for the same amount in error. I went in to the shop to tell them and Preety at Estoril Books said they would sort out with Standard Bank and reverse the amount. I went on holiday for a month and on my return in January 2016 nothing had been done. After going into the shop several times I was told to sort out myself with the bank. I filled in and submitted a Cardholder Statement of Dispute form on 22nd February 2016. I have repeatedly phoned the bank and they say they are getting on response from Estoril Books. I spoke to Odirila at Standard Bank Card Division on 29th April and she said they can do nothing till Estoril Books respond. What next??