Overcharged for Delivery

Placed a large order with CTM online for an upgrade to a farmhouse in KZN. Requested that these materials be sent from the branch in PMB in one load so that I would not have to pay a delivery fee more than once. The fee was R15 000 which we thought was excessive but paid. Then realised on delivery that the materials had come from Boksburg and the drivers had driven the whole day, from there to Underberg. I have contacted the sales person, Andrea Marks, who said she had tried to phone me. I asked her to email me as I am hard of hearing. To date I have heard nothing. I have now emailed the store manager.