Quick to deliver. No after sales service

Parcel was delivered very quickly. Was so impressed I ordered from them twice. However the one sonoff switch was faulty from day one. Was told they couldn’t replace it as I upgraded the firmware. When I argued that that is ridiculous as it is official firmware was told they could replace it but were only getting stock in two weeks. Never came back to me. Eventually replaced the device with a new one from takealot which was cheaper, the latest model and better service. Won’t buy from this supplier again