I agree Brian, negotiating the walk from car park to sorting office is very difficult with a pushchair (even more so with extra small child to accommodate). Apart from the complete loss of footpath which we non PO-van drivers are told to stick to, there is a thin area of pavement with no dropped kerb, so even if you managed to get the pushchair up it, you can't stay on it without pushchair, own arms or small child walking nicely and obediently holding on to pushchair bashing in to wall.
If someone can suggest how I find out who to email to highlight this I would be happy to do so.