Snatcher failed to deliver and communicate and refuses to refund me

I have placed and paid my order 03/10/2022. On 13/10/2022 I checked order status online, boom an update "Unfortunately this product is no longer for sale so it cannot be reordered". I then opted for cancellation as the delivery lead time has passed.

An agent told me that they have the item with the above status, yet cannot tell when it will be delivered. I isisnisted on cancellation as I did not trust all this, and yes no dispatch done therefore it should be cancelled. Then the agent is telling that I will be charged 15% of my refund, how while snatcher failed.

While I am still waiting for the response as to how am being charged, I get a new email that my order is ready for for collection by courier. So snatcher fails me and forces me with these items and deliberately disregard my dissatisfactory cause by them.

What am I expected when parcel arrives while requested cancellation?

I have never been this hurt by disrespect with my money.