Not henest - Misleading

I bought a few food items online on 30 March 2020 for delivery the next day. 3 days later the delivery has not happened, no email or call to explain the delay or at least give an estimated time of delivery. Furthermore, the contact centre is useless, as I am typing I have been on the phone for over 15min waiting for someone to pick up my call. Not only did they take money for the online purchase, now I have to pay for airtime to call them. Why offer a service if you don't have the capacity for it, totally misleading. I want my money back