I suspect our bath was re-enameled somehow before we bought the flat. It now looks really streaky (like something has dripped down the sides) and I can't get it clean - its also shiny in some places and scratchy and matt in others. I have been using the ecover cream cleaner, but its not doing the job. Also there is water staining along the bottom which I can't get off. Does anyone have any tips? - it looks terrible.