Disappointed on Non-Delivery of goods -1 and half month

I have ordered Sonoma 3-piece Basic Double White Duvet Cover Set-Parcel Number: PFS***2 on 14/10/2021 until today 28 November 2021 have not received the my order. On 26 October I wrote an email to them asking what causes the delays because usually I receive my deliveries within a week, after 2 days I received an email telling me the parcel was handed over to the courier service and I should note the parcel was within the 5 - 10 working days for delivery and I should keep my phone on and close to me at all times the courier service would be in contact with me regarding delivery. I never receive any call from them. Then every time I call them I'm told the parcel was handed over to the courier. The arrangement was to pay 3 instalments I have already paid 2 instalments but still no delivery.

I want to know when can I expert the delivery or else I cancel the order and get my refund.

Very Disappointed Elias