The reality star, who owns Gemma's Boutique and an online shopping destination, tweeted on Wednesday afternoon (2 March) that she'd sought help from the authorities over nuisance calls.
A rep told Reveal: "Gemma and her staff at the boutique have had a distressing day of harassing, nuisance calls today but with the help of Brentwood Police, this matter is now being looked into and dealt with."
Gemma had alerted fans to the issue when she tweeted: "Just to let you all know that the police have now arrived at my shop and that action is being taken against the nuisance callers. Thank you for those people concerned. xx."
She then posted an image to Instagram showing a police officer posing with TOWIE co-stars Debbie Douglas and Carol Wright alongside the caption: "Fear not debs and carol to the rescue X."
Gemma, who recently appeared in Celebrity Big Brother, provided no further information about the calls leaving many fans to wonder what was happening.
Some have pointed out Gemma shared a now-deleted image to Twitter earlier today appearing to show a list of phone numbers alongside the message: "To all prank callers, we have a system that we can get your number and we notify police."
Some of those users also complained about phone numbers being posted online.