Horrible customer service

I’m so disappointed with woolies. I placed an online order on 28 April 2020 and paid for my order. Everything was in order and got a confirmation of the delivery date. On 9 May I received an email stating that they can’t deliver my order and that there are non essential items. I responded to ask what was non essential and if they could deliver the essential items. They them sent me a email on 14 May to inform me my order has been canceled. I sent them an email to inform them that I did not cancel my order and asked why was it canceled? I have called and emailed and nobody can assist me. My money has not yet been credited to me. I also got informed someone will call and still nothing.