Samsung Flip4 Claim(Unclaimable Bull)

I purchased a Samsung Flip 4 from Telkom and found out on Samsung Members that I qualified for Voucher to purchase on the online Samsung store, I proceed to click the add on the Samsung members page to make my claim, I eventually fill out all my details and submit my proof of purchase everything goes through and after a few days I am contacted my Samsung Online via call to verify my details which I do and then they tell me that I have to wait for them to process my claim, this I were it starts to go downhill, after that it turned into a week with no update so I contacted them regarding the voucher and was told there is a problem with the voucher system and that they technicians I taking care of it and I will have my voucher processed after its done so, so this is literally the excuse they give me for more than 3months+, I have to question that such a big tech company that's known for making leaps and advances in the technology sector cannot solve a problem this for months, to make matters worst my opinions was ignored for months and I was constantly given a generic response about how I will relieve my voucher after the issue is resolved, so after all that bull they contact me on the 15th of December telling me that I do not qualify for the voucher because I did not register my interest on the lead Gen form, so this is absolutely bull because in order for me to receive any contact from them in the first place I have to fill out the lead form, secondly I gained access to they lead form from Samsung members were the promo was advertised in add, third they have been communicating with me for months for this voucher, fourth I was phoned by them to verify my details which I did (they told me the call was recorded so they can pull that as evidence if they like, 5th if they can't honor they promo why offer it the first it's not like I forced to create this promo they made this promo and now are looking for technicalities in a ********** way to back out, this is absolutely pathetic from a global company, I am absolutely disappointed in they Customer service and support offer as well as they nature in which they conduct themselves, I guess big companies have know honor, I want what is owed to me, please respond with a non generic response.