Royal Mail ‘on the brink of collapse’ as union warns 400 postal workers quitting a weekBusinessOct 13 at 7:03 PM – Oct 14 at 7:27 AM3 outletsUnited KingdomBBC NewsRoyal Mail losing 400 postal workers a week, says union Oct 13 at 7:03 PMThe IndependentRoyal Mail ‘on the brink of collapse’ as union warns 400 postal workers quitting a week Oct 14 at 7:27 AMOxford MailUnion calls for summit on Royal Mail after claims it is on 'brink of collapse' seen Oct 14 at 5:23 AM