DISGUSTED WITH PAMPERS

I have sent a complaint on the 29/05/2015 and 01/06/2015 , I was contacted by an agent and advised that nappies need to be collected in order to test the product which happened 2weeks later however then they said it would take +- 14/16 days to test I had a problem with that because I bought 2 boxes of pampers and I buy pampers because it is a good nappy but expensive so I expect a good nappy however my child drank one bottle in the night with a clean nappy however when she woke up she was soaked and this carried on . Eventually I contacted them to find out what is happening I received an email on the 09/07/2015 and 21/07/2015 that they couldn't find anything wrong which I don't think was the truth however I am forced to accept this but now I was advised that I will receive a voucher as a gesture of goodwill and will take a period of 14-21 working days it is now pass the time and still waiting on the vouchers this is unacceptable. Yet again I had to contact them to find out what is happening Pele and Sharon just apologise and that the vouchers are at the post office and can't help me further because the voucher is not with them. Why send vouchers after the actual due date .