Russels Furniture shop has not delivered my goods since 20 April 2020

I bought a dinner table and chairs cash online on the 20th of April, I have not received it until today, when the stores opened after hard lockdown I bisited the nearest store for an enquiry, they said they are going to email bt never given me the response as they promised to call me after a maximum of two days, I visited the store again and I heard from the manager that the item that I ordered is scarce from their stores maybe that is the prroblem it is notbyet delivered, I then requested for a refund as the order number and amount paid for my order was reflecting in their system, then they requested me to supply them with mybID copy and bank statement, after a week I went back then they told me that they struggle to cancel it as it was not done in the branch and tgey are also unable to trace where it was made, I am out of options now I want my money back, I have been patient since April 20, 2020