Drains bloked on Blandford Estate, Mordern House, between No: 12 & 13 at the front connecting drain in the garden in No: 13 and also connection to the above flats No:17 &18, which is also effecting the drain at the end of the Mordern House block by the sheds

Drains backing up when the neighbours above discard their used water, sinks, washing machine etc. All drains over flow at the front between 12 & 13 Mordern House, garden to no:13, upstairs flats 17 &18 and end of block drain by the sheds. The drain in the garden of No:13 over flows and is spilling into my garden No:12 and we are unable to open the window for the stench that it is giving of. Neighbours at No13 are not around at the moment and the other effected neighbours 14, 17 & 18 are elderly or house bound.