New £1 coins are reportedly suffering a series of flaws which left one being issued without a centre.
Other coins are said to be misshapen, have the colours running in to each other and can even MELT.
The 12-sided coin was dubbed "the most secure in the world" at its launch in late March and there will be 1.5billion of them in circulation within months.
But just two months into production there are claims they are riddled with mistakes.
The new coin was hailed as 'indestructible'
But evidence shows it can be broken
One recipient of a dodgy coin said: "It is all melted and out of shape."
One eBay seller is even flogging his broken coin on the online auction site.
A spokesman for the Royal Mint said: "We have tight quality controls in place.
"However, variances will always occur in a small number of coins, particularly in the striking process, due to the high volumes and speed of production."