Flashed by camera, but I'm sure I wasn't speeding

[RS1T]

I drove by a speed camera at below 30mph, and within the white lines I accelerated to what my speedometer read as 32, and saw the camera flash. I do however know that my speedometer always overestimates, or so my TomTom says. In fact, after I was flashed I drove at what the speedometer says is 32 and the TomTom said it was 30.

What do you guys think? Do speed cameras ever flash when you aren't actually breaking the limit? Also, isn't there a 10% leeway on speeding as well?

I'm worried sick as I'm a younger driver, any info would be much appreciated.

[RS1T]

It's gonna be a long two weeks...But does anyone know the answers to my two questions?

[RS1T]

Flashed the rear, and flashed twice, possibly three times, but definitely more than once.

[RS1T]

Yes it was possible, there were cars both in front and behind me, but I'm pretty sure it flashed me.

Stoofa, are you 100% sure that it's 35+?

[RS1T]

Thanks for the replies guys, this will make me sleep a bit easier tonight. If I do get a letter, I'll be sure to ask for the photo. Not much else I can do, but thanks anyway