EMR - Parking

I tried to park at Ilkeston station to pick someone up. I drove into the long stay car park and looked at the two pay machines but I couldn’t see the prices listed anywhere
I, therefore, drove out of the long stay car park as I did not know how to pay!
I found the ‘pick up’ car park but again, no prices displayed, and no time limits for waiting anywhere else that I could see!
I read I would be fined or clamped if I didn’t pay and the machine accepts cards or cash but no prices on view!
I also saw I could pay with a parking app with a surcharge but again no prices displayed. I do not use parking apps as we are constantly told to be cautious giving out information online, especially if it’s just to park a car!
I was recently unfairly wheel clamped due to misunderstanding car parking rules which cost me £140 so you will understand my caution regarding parking!
I parked in a nearby side street as I did not know how to pay the car park!
Please reassure me I will not be fined for driving in and out of the car parks without buying a ticket as there was insufficient information displayed in the car park.
I also feel I should draw your attention to the lack of information at the car park.
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Car registration *****
Thank you