After I had started my diamond painting I discovered that two colours of drills were missing from my order. I contacted Paint Plot and Cheng told me that I need to use the paper key included, not the key printed on the canvas. Slight problem though. The symbols on the paper key do not match the symbols on the artwork. I responded with this information and again was told to use the paper key. I sent photos showing the differences and was told "sorry, we're working to rectify this". It has been four weeks and I have not heard anything. I was offered a replacement artwork free of charge however I didn't want a replacement, just the problem solved and to receive the missing drills. I am enjoying the diamond painting, but won't be purchasing any more from Paint Plot. Poor customer service.