Twisp Aero and Edge Quality Control.

So after purchasing a new Twisp Aero device, two months after buying it the power on/off button completely broke. I returned it to the supplier I bought it from and exchanged it for a Twisp Edge as the buttons looked sturdier. A malfunctioning button was only one of the issues. Liquid/flavour would leak out of the air vents, would also fire burning liquid out of the mouthpiece and gurgle constantly. I was hoping the Edge would be the answer to my troubles. However, three days after use, the device consistently burnt liquid. It created a harsh smoke and constant burnt flavour. I changed the coils multiple times, filled the liquid up completely, left time for the liquid to enter the atomiser (overnight) and it continued to burn flavour. I tried returning it again however the staff at this outlet refused to do anything until their manager was said to arrive some three hours later. I am still waiting for them to contact me, as they insisted on keeping the device. Terrible service. Twisp, you lost a good customer.