Polo online shame

Polo online is a shame, I placed an order on 24 August n received the order on 22 September with a shortage of 4 items which was out of stock n I was only notified when I contacted them. I have been calling them every week for my refund, Nozipho n her assistant always have a new story, now they claim that they have paid me n they have sent a proof of payment, which is a lie cause it doesn't even appear on my statement, I have sent them my bank statement but even today I have not received anything, I am so disappointed cause my kids like Polo but I can no longer buy from them because they are not reliable