Bought a Plasma Ball from Amazon. It broke after 5 months. Essentially nothing can be done, No refund option. Essentially its gone beyond the 90 day warranty period which basically means tough. I used to think there was a 12 month warranty on any product I bought in the UK however this is not the case. Be very careful using amazon! I used to use them a lot but thankfully this has taught me a lesson and it only cost me Seventeen pounds for the privilege. I will use a reputable seller in future.