Score: 10
I use hydro system and had some issues with a few seeds I ordered to Zamnesia, within the year. After I told them my surprise and grief with the seeds, the Customer Service quickly ansered me. They asked to put in details how I proceed from germination to harvest, with what kind of material, water quality... Very soon after I gave them back the process I follow, they finally told me it may not be the best way to do, gave advice to read their method (as I already did, but I mix up with the shop owner's advices bc it is his own material) and said this is not their entirely responsibility but as commercial gesture, they sent me new seeds for the ones that didn't come for the last 12 months...