parked for 7 minutes without a parking session in place

I got a parking ticket for parking on street. I paid but not before a rapacious traffic warden slapped a ticket on after 'observing' my vehicle for 5 minutes. I made an informal representation but they said the PCN was correctly issued...

I know you get 10 minutes grace period after your ticket expires but what is the grace period to purchase a ticket? Is it worth appealing to Parking Adjudicator?

Thanks.

For meaningful advice please to have a read of
https://www.ftla.uk/civil-penalty-charge-notices-(councils-tfl-and-so-on)/read-this-first-before-posting-your-case!-this-section-is-for-council-tfl-dartme/

and post up here both sides of the unredacted PCN and a GSV link to the location.

What was the time of yr paid parking session?

Thanks for advice, I'll take a read.

I paid for 15 minutes parking from 9:41 to 09:56.

Generally none. They’ll have a look around and see if anyone is using the machines or walking between the car and the machines. If not, they’ll issue a penalty.

The moment you walk off and either leave the car park or disappear round a corner into another street, you’re fair game.

Walking away to get change from a shop, and things like that, generally aren’t allowed. Walking out of an underground car park to get better mobile signal is somewhat OK.

Generally if you paid within two or three minutes of getting a PCN, you’ve got an OK appeal. More than five is tough unless you’ve got a very good reason.