1 and a half months without a refund - Online store agents keep saying they will follow up

Hi Samsung, Kindly note that i have purchased a Samsung A55 from the online store in April- I have cancelled it the following day and was told to decline if the order comes to me, I have declined on the 2nd of May when the courier came, they took the item back - I called samsung online sales and they told me that it is noted and that i should continue waiting for the refund to process - Eventually after calling multiple times, i eventually resorted to emailing samsung, they now say that the item is with the logistics and i am not getting any feedback no matter which channel I try - I have a cancellation reference since march and this is just very sad as i need to purchase a diff model from samsung and this is delaying it, I am losing faith in samsung as a whole.

I am trying this platform as a last resort before i take this to the ombudsman - I also have CCTV footage on the 2nd of May of the courier services being declined and taking the boxes back with them