Lucy Radar from Midrand has been receiving traffic fines through her mail since 2003, advising her that she has been travelling at a speed of 100km/h in a 70km/h zone.
All the alleged offences took place in Roodepoort - where Radar, 71, claims she never goes.
"I only drive around Midrand and I do not drive at that speed," she said.
Also, according to Radar, the offences took place while she was on holiday in Italy.
She said she tried several times to explain her case to the prosecutor at the Roodepoort magistrate's court by phoning and faxing all the relevant documents - but to no avail.
It was only after a messenger of the court arrived at her home with two summonses that her matter received "a bit of attention".
She took photographs of her car and demanded to be shown photographs of the vehicle involved in the offences.
"We found no less that five points of differentiation between my car and the one photographed in Roodepoort with my registration number.
"My car is a CitiGolf, the other is a Chico. I have no stickers at the back of my car and the other one has at least two. So clearly this was not my car."
Radar said that after many trips to the Roodepoort court and the Johannesburg magistrate's court, she was told the matter had been "resolved".
"I have no proof that the fines have been scrapped - just the word of the prosecutor. I don't even know if the other car still has my vehicle registration number."
She said her experience showed that "anybody can buy a licence plate anywhere without anyone verifying if they are buying the plate for their own car".
Saturday Star went out to see if we could buy a licence plate with any number. We had no problem doing so.
Right under the noses of the licensing department offices in Loveday Street in central Johannesburg, people are selling licence plates without asking for documentation.
In fact, the vendors promise to have it done in "five minutes".
Ironically, in one of the shops, a notice on the wall asked customers to bring ID, or a licence, or a chassis or engine number of their vehicle. But none was asked of us.
Superintendent Wayne Minnaar, spokesperson for Johannesburg Metro Police, insisted his officers would "arrest anybody found with an illegal number plate", but could not ensure the legal selling of plates.
"We can't go to every shop to make sure that the owners asked for the right documentation but I want you to write in bold that people who do that will go straight to jail."
Minnaar promised to look into Radar's situation to make sure that her "fines" were scrapped.