Shocked with the bill for calling premium rate numbers

It is so hard to spend the money you earned. I remember the time when I was a youngster and my parents were giving me the pocket money. Then everything was different. You wanted to buy a video game, so you done it, without thinking about the consequences. You think "I can buy it, parents will give me money again". The respect for money is growing as you are becoming older. A will of having own money is very appreciated by the parents and other people. That means that you think about the future. When I started to work regularly, I always think about the expenses. Moreover I had an unpleasant incident at the beginning. I received a bill from the phone operator, with 300$ to pay. It occurred that I was calling to premium rate numbers. This is ridiculous! I don"t even know what is this! I was so angry that I was shouting at the lady behind the counter. I know that it is rude, but try to understand me. Someone tells you that you called premium rate numbers, you don"t even know what is this all about and you have to pay enormous amount of money. What the hell? Why don"t they respect me? I am the customer and I demand this case to be investigated, I won"t pay for this service! I"ll tell you more, I am going to change the operator! I don^t care!