New coils are pathetic

The old coil would last me about a month, these new coils are absolutely disgusting. I have gone from 1 a month, to 2 a month to 2 THIS WEEK. I bought 2 coils from your head office exactly one week ago!!!! Within 2 days coils start to taste burnt, give off this vile taste and even hurt my throat! I have previously complained about bad service with twisp but enough already!!!! To have coils last 2 days and charge us more because \they new"this sounds dangerously like a money making scheme. Your brand has become unaffordable"