Not heard any rumours either - I bought a bottle quite recently with no problems. The tubs being sold on Ebay look like they are from a rival supplier - the ingredients may be the same as Thornit or not. Bit naughty to use the word "Thornit" to sell their products but it seems to be common practice with some Ebay sellers (ie using the name of a well-known product in their own ads for a similar product). Champion Pets are the only one in your links selling the orginal Thornit - the other two are the same supplier selling their own version.