Terrible quality control and customer service
I ordered 2 bundles that were to include 2 packs of coils each, for a total of 4. When I received the order there were only 2 packs. I contacted customer service, which they quickly replied that I needed to send them a picture of the contents and they would get it corrected. I promptly sent them the picture and didn't hear anything else. I sent them a followup email about 2 weeks later with no reply. Terrible quality control and customer service.