Payment for Pure for Men tablets not received

I purchased 2 months supply of Pure for Men fibre tablets from the www.p4m.store website costing me R1298 on the 17 April 2021 in South Africa. I completed the transaction using online banking with FNB and thought that because my payment was successfully transfered that my purchase would be complete,confirmation details would be sent to my email but no confirmation was sent. I subsequently made contact with Quinton who is the owner of Pure for Men SA via email and he advised me that my payment failed 3 times and he sent me confirmation of this but my question to him was if payment failed twice and the 3rd time why did the payment go through and not reflect in his business account. And no proof of this was supp**** by him which proves that he is running a business which is ********* with low standards of customer service and gives his potential customers the run around. I have tried my utmost to seek the help I need from FNB asking them to run an investigation so the funds can be reversed and Pure for Men SA still does not want to give the authority for the reversal of my funds or give me the 2 month fibre tablets which I will gladly accept but the uncooperative,unprofessional level of customer service I have received is just too unbelievable and unbearable for me to endure any further. My hope is to find to resolution with this matter as I cannot deal with this another minute!