Don't worry, falling out is not on the agenda, merely friendly discussion.
My 'bone of contention' if that is the correct phrase, is that you made what I felt were generalised and sweeping statements based on one relatively minor incident. Even the title of your post 'caravan dealers' implied a plural, but that was incorrect as you subsequently stated other dealers were more helpful to you. I also felt that even in your OP you stated that 'I had to talk her into going to see my van' which implied that the girl in question was not comfortable with agreeing with you and was possibly overuled later., The discourtesy was in them not contacting you to cancel. As for their claim to be the largest in Scotland, I cannot confirm or deny that. However, looking at the size of a number of dealerships both in that area, and in the Central Belt I do feel they are being a bit optimistic. I am also not aware of them winning any 'Dealer of the Year' awards as others have done.
We have all been in business so are all aware of what issues are at stake. My last operational area that I controlled included Serbia, Croatia and Hungary and getting shipments from the UK and US was always fraught, and although my customers demanded. and received 24 hour instant service, possibly as a result of that pressure, I am more tolerant towards others. My 'worst nightmare' was shipping 100 cubic meters of Cesium brine from Aberdeen to the Rpomano/Hungarian border, delivery within 7 days. This stuff weighs 2.3 SG and will crystalise under 30 degrees C, so I had to arrange 7 refrigerated trucks, reverse the fridge units to heat the trucks and carry the brine in ISO containers. I could also point out that cesium brine costs _2300 per litre so the thought of a breakdown or leak was always there. However, all went well.
Finally, I am pleased you have resolved your problem and hope you enjoy your next van.