Been told that I cannot file taxes because parents claimed me as a dependent but made over 3000 is this true?

Absolutely, positively not.

Whether your parents or anyone else claims you as a dependent has absolutely no effect on your obligation or ability to file taxes. Some people mistakenly believe that if your parents claim you as a dependent, they claim your income, your withholding and your refund, too. This is absolutely not true.

People who make more than a certain amount are obligated to file taxes. However, ANYONE is permitted to file taxes. If you are due a refund, you must file taxes in order to get the refund. Your parents cannot get your refund for you. Whether your parents can claim you as a dependent has absolutely nothing to do with you. You must file your own taxes for your own income and withholdings. And if you owe taxes, you are obligated to file and pay them.