HDB is repsonsible for the maintenance of HDB wall plate. Call HDB for a free replacement .anyone know where to get the TV/FM wall socket/face plate for HDB MATV at local shop??
How much it cost?
Superficially, all the wall plates look the same, but they are not, internally.
If this is for your own extension, check with HDB who are the contractors. They will be able to advise you to get one that fits.