Jailed Instagram influencer Margarita Tomovska, aka 'Mercedes Mum', has had five months cut from her prison term after convincing an appeal judge her original sentence was too heavy. The famous lead foot was convicted of fleeing from police at 230km/hr on the Princes Highway near Helensburgh. Tomovska was sentenced to 18 months' jail, with a non-parole period of nine months on October 17 but lodged an appeal against the length her sentence shortly after. On Friday, Judge Andrew Haesler at Wollongong District Court upheld the conviction but reduced Tomovska's non-parole period to four months, making her eligible to apply on February 16. Tomovska had challenged the case, arguing she had been under duress from her "dangerous" male passenger, Christopher King, when she lead police on the high-speed chase in her $450,000 Mercedes AMG on the evening of November 13 last year. Unbeknownst to the officers, a three-year-old child was inadequately restrained in the back of the car at the time. When Tomovska eventually pulled the car over, officers apprehended her and King at gunpoint after receiving intelligence there might be a firearm in the car. In finding Tomovska guilty of the pursuit at a court hearing in August, Magistrate Susan McGowan flat-out rejected Tomovska's claims she had been acting under the duress of King at the time. Police searched the vehicle but did not uncover any weapons. Tomovska, who was known to wear designer clothes, is also disqualified from driving for two years. She is serving her sentence at Emu Plains Correctional Centre and has spent 22 days behind bars.