Disgusted by One Cart

I ordered and my delivery was meant for 6 April 2020, I received a email saying that my order will be delayed by 0.5 days, I ordered a birthday cake for my Birthday and the driver even sent photos showing me what he had bought, the app says that my shopping was completed at 10:45 yesterday but to this day I have received nothing. I would hate to see what my Birthday Cake looks like shem. This was the first and last time that I use One Cart, I am disgusted by the manner in which they treat their clients, they don't even communicate but they take your money, that is not how you treat your customer or client and I have worked in Client and Customer Orientated Organizations for 6+ years so i know what I am talking about when I talk about Client Servicing and treating your clients/customers.