More than a quarter of those businesses reported they were unable to obtain necessary goods.
The separate rail disputes, involving the RMT and ASLEF unions, also appear to be no closer to a solution.'Nothing fresh on table' in rail strike talks
Data suggests a 'negligible' impact from rail strikes on consumer spending ahead of the festive season but the dispute at Royal Mail has affected almost one-in-six businesses.
More than a quarter of those businesses reported they were unable to obtain necessary goods.
The separate rail disputes, involving the RMT and ASLEF unions, also appear to be no closer to a solution.'Nothing fresh on table' in rail strike talks