iStore Pre-Order Refund

I placed an pre-order with iStore on the 13/09/24. They have been keeping me on hold for weeks. No Stock. They sent me a SMS update on the 2nd October with good news. Your order has been secured and will be delivered by the 8th October. Please look out for communication from our courier. I waited patiently till the 8th. No delivery. They gave me a call telling me that there is still no stock, after I had been waiting at home patiently for the courier to arrive. After this I lost all interest in receiving the unit and decided to cancel the order. Today the 15th October they respond, telling me that it will take 10 - 14 working days for the refund to reflect in my account. Totally unacceptable.