delayed delivery and request for refund

I ordered two tablets on the 31st December 2025, with a scheduled delivery date of 5th of January 2026. Unfortunately, the order has not been delivered, and I have waited in anguish for my order to be delivered, and the delay was very frustrating. I contacted the customer service on Wednesday to enquire about the delay delivery ,and the consultant logged a call on my behalf. However when I called them on Thursday following up on the call I logged on Wednesday , there was still no feedback provided. Due to the lack of communication and continued delay , I requested the order to be cancelled o that the refund to be processed ;however I haven't received the confirmation of the cancellation. If I don't receive the refund by Tuesday next week, I will lodge a complain with the National Consumer Commission.