Flying tends to be pricy, simply because of the number of people who fairly expect to be paid to get a plane into the air. There are also more variables in piloting, and flying than other similar pursuits. And then you have to consider the step you will take after the PPL, which presumably will be to continue flying.
I suggest that you consider the PPL to be a step along your path to enjoy being in the air, rather than an endpoint, or even a milestone. Having a PPL is nice, but if that is the objective, it can overshadow your enjoyment and learning during flying - sort of like the kid who keeps asking "are we there yet?" to the exclusion of simply looking at the beautiful scenery on the trip.
Consider an approach of: "I have a budget of XX a month, for the next umpteen years". If it is enough, go flying. At some point, with dedication, you'll have a PPL, and the only difference you'll notice will be that you can then take passengers to share your passion. Otherwise, you're still out flying!
That said, you have every right to expect to be politely treated by any service provider, so don't settle for a lack of courtesy!