Unbelievably poor service or a promotional ****?

On 22 January I bought a Samsung S21 phone and was pleased to see that the promotion included a free set of Galaxy Buds and a Galaxy Tag. On the same day I registered to receive these items and got a confirmation that the claim was successful. On 4 Feb (13 days after getting confirmation that the claim was successful), I called the Samsung call centre. At this stage I had not received any communication from Samsung with regards to the delivery of the items. My address had also changed and I informed the call centre agent who took down the new address details. On 8 February, the couriers working for Samsung called me as they were outside my property to deliver - they had the old address and not the new address I gave Samsung on 4 Feb. I again called the call centre, The address on the system was still the old address! I again provided the new address details and on the advice of the agent, emailed the details to the ***. No response was received to that email message. On 22 Feb (31 days after my claim was confirmed), I again called the call centre. I still had no idea what was happening with the items. I was unhelpfully told that the parcel would be delivered within 7-14 days. I asked about the address and it was still showing the old, incorrect address on my record!! The agent tried to find out what was happening, but after more than 10 minutes, she was not able to do so and took my details and the new address info and promised to get back to me. Needless to say she did nothing of the sort! On 2 March, I again called the call center - 39 days after the claim was registered. Again I was given a barely believable excuse as to why the delivery had not occurred. The address on the system was still incorrect - despite me providing it on 3 separate occasions! As the call centre was unwilling to assist I decided to escalate the matter and found on the Samsung site the *** address that is for customer feedback and is 'monitored by the executives'. I sent a detailed explanation of the issue on 2 March. Again - no response was received to that email - so 45 days later - I still don't have any of the items promised and wonder whether Samsung every had any intention to provide those items - once they had sold me the phone (which I paid for in cash) - they were no longer interested in honoring their part of the deal.