Samsung wasting my time and ignore Note 20 customers

I purchased the Samsung Galaxy Note 20 Ultra on Saturday. With the pre-order comes a R4000 e-voucher which u must redeem from Samsung site. The voda shop helped me redeem it and I got a confirmation letter that they would confirm everything. Its Thursday tomorrow and I haven't heard a thing despite calling Samsung twice and them giving me email addresses that no one responds to. What the heck is happening with my voucher. I am sick of calling you people and getting nothing but incompetence. If you tell me the promo is over I will report you for false advertising the deal went through on the 22nd and the voucher was redeemed the same day. I expect what I paid for.