Is anyone aware if there is a "period of grace" after 4 January, where the old letter rates will be accepted without the recipient being charged for underpaid postage? In the past there has been an "unwritten period of grace", sometimes two weeks or a month.
This is the case where you drop a pre-stamped letter into a red post box. Of course once you approached the post office counter, the latest postage would be charged.
Happy New Year and thank you for all the very helpful "inside advice".
