AWAITING REFUND FOR 2 MONTHS NOW

I bought an edge and was very unhappy, as it was permanently leaking fluid. I tried to swap it out at the Northgate store & was informed that this was not possible. I HAD to purchase/pay for a new device - I chose the Aero. I was told they would refund my money straight into my bank account & was told that this would take about 7 days. It has now been almost 3 months & still no refund!!! I have asked for info in person at the kiosk and all they can tell me is that I must deal with head office. I have tried calling people - I just get shrugged off. I own 4 twisp Clearo's & 1 Aero & many batteries for the different devices. I own so many because every twisp so far has been leaking or has had problems, I have been hopeful that the next one would be better but this has just left me spending money & ending up disappointed. The new Aero I own has given me countless problems, from the device that constantly leaks & then it just stops working for no reason. I am VERY UNHAPPY about my refund which is LONG OVERDUE to the thousands i have spent on devices that don't work. Now wonder twisp can advertise 99% safer than smoking because u are never able to smoke the twisp anyway!!!