got a parking ticket

I got a PCN from hammersmith and fullham but the thing is:

my license plate is correct
the vehicle was a valkswagen (I ride a scooter)
the tax disc information is incorrect

I’ve sent them a email to appeal, how long will it take? is it likely that someone is using my license plate or is it just a random error?

If you get any more tickets your plate has most likely been cloned… but for the moment it sounds like a clerical error