Appealing a loading zone ticket

[weringo]

Evening all

Today I parked in a Red Route Loading Zone bay to pick some stuff up from my parents only to return to a £65 parking fine

The bay had a maximum loading time of 20 minutes which I returned within, however I read some conflicting statements on the web, some arguing you have to be constantly loading for the duration you're in the bay. Whilst technically that's what I was doing, it wasn't as if I was returning to the car every 3 minutes to pick up/drop off goods.

In my eyes loading is loading and taking roughly 15 minutes doesn't seem unreasonable, although I'm fairly biased having just received a parking ticket for it

What's my chance of appealing it?

Edit - see the bay in question below

 

[weringo]

Post a scan of the PCN.

 

[weringo]

My mum and sister can witness to the fact I was picking things up from their house, although I find it strange the defending party has to prove innocence. I would have thought the prosecuting party would have to prove I was not loading.

Seems an odd interpretation of the law by the TFL.