Double Deduction

I transferred this morning and amount of R1850 from my absa money builder account to Avios account. Now on Saturday I went to my local Bp garage and through in R300 unleaded and bought two cans of oil amounting to R300+R54 on my statement the amount is showing and deducted. But this morning that same amount was deducted again an is laying under unclear with the R200 and through in this morning<br> <br> Why was the R354 deducted again this is an error as it was already deducted. That was swiped on the 23 Jan 2016. <br> <br> Please assist as money is tight and this is unacceptable<br> <br>