Smiley faces used in smartphone text messages could be costing users double the price.
News.com.au reports using a bullet point to indicate the "nose" of a smiley face split the text message in two, resulting in the user being charged for two messages.
Melbourne smartphone user Toby Passauer is believed to have discovered the hidden charges after looking over his phone records.
Messages which he had punctuated with a smiley face, which he created using a bullet point, were charged twice as much as those in which he had not used a smiley face.
Telstra has blamed the use of the symbols on a coding issue which limited the number of characters the message could contain.
In its customers terms, Telstra said messages containing "non-standard characters" which were 70 characters or less were only charged one standard fee.
"For any SMS that contains a non-standard character and is more than 70 characters, we charge for each group of 67 characters or part thereof that contains non-standard characters," the terms read.The issued reportedly only affects iPhones and Samsung mobile phones.
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