“The more of us that call out Royal Mail for their actions and their continual service failures that affect the people of Wrexham, the better.”
Royal Mail said independently verified figures showed 99% of items posted by the last recommended posting dates were delivered in time for Christmas.
It added that it understood it was concerning when letters did not arrive “as expected”.
“Currently in north Wales 84.8% of first class letters are delivered the next working day, with the remainder arriving in the days that follow,” a spokesperson said.
“Across the UK, around 92% of all letters are delivered on time and 99.4% arrive within a week, meaning longer delays are rare.
“While the vast majority of mail is delivered as expected, there can be short-term, localised issues which we work quickly to resolve.”