Undelivered cistern universal blue

I am not happy with cashbuild Rustenburg for the bad service I received from them... On the 30th January 2026 I went to buy the building materials and spent R35256.45 to be delivered at Mabaalstad(kwa Phiri) .The goods were delivered the following Tuesday however after they left my builder phoned me on the 6th to notify me that they did not deliver the cistern universal blue. I then called them on the 8th to let them know and was told to call back on Monday because the manager (Sipho ) was off .When I call he said I should ask someone who will come to town to collect it but to my surprise when my sister went today the 11th she was given a different story.They insisted that they delivered. I mean how can I lie about to receiving something that costed R419 whereas I spent R35256. I then asked my daughter to go and double check if it was delivered as I am staying very far from the place and she.also.comfirmed that it is not there she even video called me to show me everything that was delivered. Cashbuild please I want my goods as I am not happy with you at all because now it's like I am making up a story..what am I going to benefit for getting 2 cistern universal blue? Nothing at all cause I only want the one I paid for.