No Promo gifts received after multiple requests

I have been battling since January 2021 to get my promotion gifts when I pre-ordered my Samsung S21 Ultra. I have registered the claim as per the required process and have contacted Samsung multiple times to find out what is happening with these. Every time I contact Samsung, I get told that I have received my gifts - this is NOT TRUE. For whatever reason, I received a Smart Cover + S-PEN (I never requested these and am waiting for the correct gifts - Galaxy Buds Pro and the Smart Tag that is due to me, as per the offer). The matter is always escalated but nothing ever happens. I have called on the 10/3/2021, 07/04/2021, 31/05/2021, 23/06/2021, 19/07/2021 and the 23/07/2021 but get NO RESOLUTION. Your customer service is lacking and I'm concerned that the offer constitutes false advertising (and/or a violation of CPA Act). I find this completely unacceptable (expecting customers to pre-order and then never provide them with their gifts almost 8 months after the promotion). Please resolve.