Clicks Online - my money has disappeared

I placed an order with Clicks Online on 17-03-2020, and paid by Instant EFT (PayU).

On 17-03-2020, 11:40:50 am, my Bank sent me the following SMS: "Absa: Add beneficiary: A new beneficiary account ***0 Branch 051001 was added for Internet Banking service ... ."

At 11:41:11 am :" "Payment Debit ABSA BANK Online Store, R - 458,93 ... ."

The money has gone out of my Bank account - and didn't come back.

The Order does not appear in my order history.

I have contacted Clicks Online via phone and email numerous times, and received only canned answers – “We have forwarded your email to our Online Team for further assistance and feedback.” – “Your query has been escalated and we will be in contact with you within 48 working hours. Reference, #***1.” (That was on the 18th of March) – etc.. They do nothing and think that the problem will go away by itself. I want my money bac**** As a pensioner I cannot afford to make a friendly donation to Clicks!