Inferior product and even more inferior customer care service of huggies

We bought a bulk pack of huggies pull up diapers 120 pack. And every diaper leaked through, after calling them to explain and sent videos of the product they promised that they would send us a voucher to replace as they acknowledged that there was a bad batch. We sent batch codes and they apologized. Informing us it would take 6 weeks for the voucher , we patiently waited 8 weeks and yet nothing . We again called and they had said it must have got lost, they will reissue the voucher as they can see we haven’t redeemed it. It’s been another 7 weeks and still nothing. After numerous attempts to call and email they are just ignoring the complaint. I believe that this is completely unacceptable . Why must we as the consumer be lumbered with such utterly poor products and just bear the costs . Huggies product after service care is utterly pathetic and should be taken to task for such poor service. They commit to assist and yet do absolutely nothing other than promise things telephonically and on email and yet do not follow through with there commitment . They just blatantly try to get you to believe they are doing something about the problem but in actual fact are feeding you utter lies just to get you off the customer complaints line. How can a company of this magnitude be allowed to take the consumer for such fools and blatantly sell such inferior products to the public and expect us to just accept it. I believe that this sort of service should be shared with the public as enough is enough .