Royal Mail has suspended fines on letters containing so-called counterfeit stamps amid widespread confusion over whether its internal systems are at fault, The Telegraph can disclose. In a victory for this newspaper, the postal service has reversed its decision to surcharge recipients as it investigates issues with its new barcoded stamps. The change, which comes into force today, is expected to be in place until the end of July but insiders believe it could be extended further. Letters containing stamps deemed counterfeit will instead be returned to sender or delivered with a yellow sticker informing them the stamp is fake. Under the change, recipients, which have until now been charged the fines, will not be charged. Royal Mail has faced huge criticism in recent months after a switch to a new barcoded stamps system last July led to a spate of customers being issued with stamp fines. The postal service then doubled the penalty from £2.50 to £5 in October, despite customers claiming that the stamps had been purchased from Post Office counters and the Royal Mail website. Royal Mail has so far resisted calls for a formal investigation. The firm, which is regulated by Ofcom, said its processes for...