Vape Junction does not Honor Warranties

I purchased a GTRS VBOY 200W vape mod from Vape Junction Krugersdorp. After a few days use I realized my 510 plate was loose and would wobble from side to side with my tank on it. I reported this to the store and was sent away by the store being told to go get a *****driver to tighten it as that would fix the problem. I purchased a T *****driver set and tried to tighten it but was already tightly secured. I returned to the store as soon as possible to inform them that the issue is getting worse and I tried to do as per their instructions. I was told that the device had no warranty and that I would need to take it to some gentleman that wouldn't charge me not much to get it fixed. I noted to the gentleman that I was never made aware of it not having any warranty and he said they only have a 7 day exchange period on all their devices. After some further discussions he agreed to send a video to the store owner in order to try arrange for an exchange or refund. I returned the device with full packaging in order for him to arrange this but the owner refused. I spoke to the owner and after much frustration I requested a refund in order to select a new supplier that would honor the device warranties as well as our local government laws which states any device should have 6 months warranty and the consumer has the right to request a refund, repair or exchange at the direction of the consumer. I was refused this right and they proceeded with the repair being done by the gentleman they firstly advised me to take the device to. I am very dissatisfied by the quality of the device as well as the after sales service received. I dont know what I stand to do as I do not believe the repairer is warranted to work on the device and thus has now voided any form of warranty I would have had with the manufacturer?