Massmart Retail online shopping

I online on the 30 April 2023 promised delivery on 5 May 2023 the delivery failed no one contacted me so I requested refund still now no refund all they say is we investigating,I spoke to Mariam Ferris,Robin Williams, Bradley Berry,Lyneata Williams all of them they can't provide me with an answer,they lie to say we called and no answer and they never called me.Never buy from Game online is bad experience