rotten meat

On 08-04-2015 I bought a 1 kilogram packet of viennas at Spar.On boiling they gave off a terrible smell and on returning to Spar the butcher agreed that they were rotten.I e-mailed the supplier to voice my discontent as this is the 2nd time it has happened.<br> I have had no feedback and feel that they should be held responsible for their products