Using Samsung Galaxy Buds+ to entrap customers

I bought a A31 soley for the promotion for the buds + I app**** and then the request was denied. The campaign ended on the 26th August and my application was sent the 25th. What my argument is their promotion was on their site for 2 weeks after and also on Telkom site. I basically bougth a low spec phone thinking I can get another samsung device in my eco system. I own Samsung smart TVs. Galaxy active 2 watch. Samsung Note 10+. What makes things worse is they are advertising the same deal now with the A51 and A71. I basically bought a entry level phone at inflated price. The customer service is atrocious. I have a complaint about this for 4 weeks now requesting this to be escalated. No one ever called me back... i have to call every time to check on the status. Latest status was that they will call me wrt giving me the pair of buds+ but cannot commit to a date. Please refer to complaint ***. I have evidence on email to *** that the adverti*****ts was still live 2 weeks after my application.