Waiting for item purchased (that was in stock!) since 24th March

1 Star is honestly too high for the absolute appalling customer service I have received! I am still awaiting an office furniture item purchased and paid for on 24th March that was “in stock” at my nearest branch and (I was advised) would be delivered before lockdown! It never arrived, I waited the 5 weeks and after lockdown ended after spending hours on hold to both the store and call Centre to be told “that the item is no longer in stock“!? But when I paid for it is was!! My emails have been totally ignored (not even an acknowledgement of receipt), false promises (told they’ve found it at another branch), even management at the call Centre basically telling me they can’t promise they can help because Woodmead branch do not answer their phones!!! I’d like to cancel but have been told it will take at least 3 weeks for my refund (which to me, based on my shocking experience as a customer, means it will probably take me months to see my money). This is basically ******* - I bought and paid for an item which was in stock at the time, this should have been kept for me, but instead was obviously sold. Currently no-one can assist me!!