no voucher yet

I purchased a pack of huggies gold diapers for my son about 3 to 4 weeks ago. Only to find 3quater of the pack reject thus im unable to use. I sent pic attached via email to th careline and i received a call from a consultant quering this matter. And i was promised a voucher. Last week i sent another email quering the voucher as i have not received it yet. I had made them aware that i need the voucher as i dont have cash to purchase a new pack as i had jus bought a pack which wouldve lasted me bt turned out reject. And since then no contact or communciation from huggies. These diapers are not cheap that we cant afford to buy new packs every week and it is an inconveience to me now