Those living on the new Pear Tree Fields estate in Kempsey claim they have been having issues with getting mail since the estate was built three years ago.
But, resident Peter Moore said the situation has progressively gotten worse.
He said residents have repeatedly gone from receiving no mail to having two weeks’ worth of letters delivered across the past two months.
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In response, Royal Mail said it is delivering to the estate daily.
“I just want my post,” said Mr Moore.
“It is like we are an isolated island in terms of post – we are not isolated as we are next to St Peter’s, but it feels like we are not on their mailing list.
“I would not want to say forgotten but I didn’t think we would not be receiving mail when moving in.
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“You do feel a bit isolated and the routes into the community are not there.”
The 41-year-old, who lives in Hartpury Close, said a Royal Mail worker told him that the estate had not been put on the mailing route and workers rely on overtime to cover it.
He is waiting for a hospital appointment letter but added it would most likely arrive late.
“We would just like to post on a regular occurrence as opposed to it being dumped on it.
“There is the unknown of what is missing – like if I got a fine or something.
“We want a sustainable solution and not a sticky plaster.”
A Royal Mail spokesperson said it encourages customers who experience any issues with its deliveries to contact them directly.
“We can confirm we are delivering to the estate daily,” it added.
“At times, due to operational issues, delivery routes may not be fully completed.
“However, we work to prioritise and resolve any delays the following day.”