Unwilling to refund within 7 days

I recently bought a device from The Vape Station in Protea Heights, Brackenfell. Unfortunately, only after my purchase did I read how bad this is for one's health (this is covered up by the Vape companies as they accuse the cigarette industry of false accusations against the vape because they will no longer be making money if everyone starts vaping)... According to a recent study, the e-cigarette causes a disease named "popcorn lung" (this can be found on google). Obviously, one will have concerns and if I no longer feel comfortable using this device, it is solely my decision and no vape sales person can convince me otherwise. I then requested (within the 10 day period as per the consumer act) that I be refunded as I returned the device in full working order, barely used (only used for 3 days), not even charged yet, a full tube of liquid etc... and to my surprise... no they don't want to refund me... The service one receives these days are astonishing!! I cannot believe how nonchalant people are. I also work in the service and sales industry and this is definitely not how one does business. Please go read your consumer act before you open a shop under a well known name. This will not be left there, I will take this further as I am so sick and tired of the consumer just having to accept the "policy of the shop". Please be aware that your self implemented policy is null and void if it does not comply with the consumer law...