Hi,
I am sorry that someone would try and charge you for removing a curse or hex or anything like that. These people really don't have any morals and should be ignored. There are many good psychics and mediums out there that would never dream of saying such awful things or charging such exhorbitant amounts either!
Listen to the advice that has been given already, and also listen to yourself. It is really very unlikely that you have anything wrong at all apart from perhaps these people preying on you.
I don't think you have anything to worry about, if you would like to have such extra protection and peace of mind find yourself some black tourmaline and carry that round, maybe a tumblestone in your pocket? this is a well known talisman that will keep you extra safe. You could also smudge yourself with white sage.
Sending you lots of positive thoughts, please don't worry
