Duplicated deduction

Trying to save myself time and trouble – I register on Easypay on 26 September 2017 – and using my credit card – pay my Municipal Bill. Everything works fine – and is duly reflected on my Credit Card statement on 28/09 – with transaction date as 27/09. On 13 October 2017 a duplicate transaction takes place – same amount – same transaction date – but a different reference number reflecting on my CCard statement. Phoned their Call Centre – and got told that only the first transaction was received. No trace of the second – and was told that my bank was at fault !!! Queried the transaction at Absa – who are at the moment investigating. Meantime provided Easypay via email the proof of the deductions with the transaction reference numbers on Monday 23 October 2017. Still waiting for a reply….