Can anyone give me advice please. Situation below
1) My company provides waste clearance services using a van
2) I did a clearance for a client whose house is on a red route.
3) Client has a driveway.
4) when i arrived driveway was occupied by their builders.
5) i pulled two wheels onto the pavement and was stationary for 1-2 minutes. I am fairly sure i didnt leave the van at this point (if i did it would only have been for a couple of minutes, but i am fairly sure i didnt). I HAVE BEEN SENT A FINE FOR THIS
6) I pulled away and parked on a side road. Went inside and asked the builders to move.
7) builder said he would move his van

i pulled my van back around and again put two wheels onto the pavement. As the builder had not moved i got out (so did leave the van unoccupied) and went into the house for a few minutes (2-3 minutes). I HAVE BEEN SENT A SECOND FINE FOR THIS
9) the builder came out to move his van.
10) i reversed on to the driveway
Is there anything i can do? I am a working business and as it was a red route i was trying to not block the road. I was not parked for any significant period of time and their footage will show me reverse onto the driveway. It is not like i parked and went to the shops etc. Unfortunately there were two short periods where i had two wheels on the pavement whilst waiting for the driveway to become available.
thank you