Sorry if this has been asked before, but does anyone know of a national tyre chain, or a place near Maidstone, that will plug run flats ? I have a nail in each of my rears, middle of tread, and I am sure I have seen that these can be repaired, however Kwik Fit say their company policy - and 90% of other tyre fitters' - is that they don't rain run-flats. Any advice / direction greatly appreciated 