I've had many PC Financial accounts for well over 10 years now, have not paid a penny for anything, but now am offered a tax-free savings account? When was I paying tax on it before? What exactly is the point of this account?

The savings interest in a tax-free savings account is, well, tax-free, as in you do not pay Income Tax on it.
Also, you can hold mutual funds and stocks in a tax-free savings, and the interest, dividends, and capital gains derived will also be tax-free

You seem to be thinking of fees, not taxes.The savings interest in a tax-free savings account is, well, tax-free, as in you do not pay Income Tax on it.Also, you can hold mutual funds and stocks in a tax-free savings, and the interest, dividends, and capital gains derived will also be tax-free.