Teaser 2929: My PIN numbers

From The Sunday Times, 11th November 2018 [link]

Using all but one of the digits 0 to 9, and systematically replacing them by a letter, my PIN numbers become ONE, TWO, FIVE and SEVEN.

These numbers are such that:

ONE is odd;
TWO is even;
FIVE is odd and divisible by 5;
SEVEN is divisible by 7;
ONE + TWO + TWO = FIVE

If I told you which digit was not used, you should be able to work out my PIN numbers.

What PIN number is represented by SEVEN?

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