Samsung **** Buy and Lose

Hi. I bought a Samsung Fridge with the buy and get R7k voucher Dec 2018. I must've tried booking through Kulula not less than 5 times during 2019 and finally, 2 weeks before my expiry date I again gave instruction to Kulula to confirm booking only to find the return mail in Junk mail stating another technicality being I can't pay for myself to Cpt and then add myself on the voucher booking on the return flight. I immediately notified Samsung about the missed email and after speaking to Amin at Samsung Buy and Get Escalations who understood that I did in fact give instruction to book BEFORE expiry- simply came back and said declined due to expiry date. What a **** ! All paper trials shows but they are simply ripping people off.