Contaminated water bottles

<p>Over the months of November and December 2016 we purchased a approx 20 bottles of 5Ltr Waters. Of those bottles at least 10 (same batch no) were contaminated with a plastic/chemical residue.We only realised once my whole family had ingested at least 2 bottles worth.After complaining to the Woolworths outlet and to Head office we were told that they were aware of the problem and we're recalling certain batches.</p> <p>I believe this to be a serious health matter,and even after numerous communications with Woolworths South Africa and several reference numbers we have had not one explanation or apology from them.</p> <p>What Woolworths does not realise is that I still have bottles of the same batch no.I would like to have them tested,could anyone advise where this could be done?</p>