STALE SIMBA POTATO CRISPS

IN THE PAST I FOUND SIMBA'S POTATO CRISPS TO BE IN A LEAGUE OF THEIR OWN. HOWEVER DURING THE LAST FEW MONTHS I HAVE NOTICED TWO HUGE PROBLEMS WITH THEM. FIRSTLY THEY TASTE STALE EVEN THOUGH THE PACKETS REFLECT THERE IS STILL 6 TO 8 WEEKS BEFORE EXPIRY DATE. STALE CRISPS ARE FOUL!!! SECONDLY I BUY MY CRISPS FROM THE SPAR IN NORWOOD AND I HAVE NOTICED RECENTLY THAT THERE ARE VERY FEW 36G FLAVOURS , MOST OF THE TIME THERE IS ONLY CHEEESE AND MEXICAN CHILLI MOST OF THE TIME. SIMBA IS GOING DOWNHILL FAST.