Don't trust bank employees to know IRA regulations. The ordering rules for withdrawals from a Roth IRA are correctly stated in the answer above (although to clarify, when referring to "rollover contributions," the answer is referring rollovers other than the rollover of a distribution from a Roth IRA). See the following from IRS Pub 590-B for confirmation:
<a rel="nofollow" target="_blank" href="
https://www.irs.gov/publications/p590b/ch02.html#en_US_2015_publink1000231071">https://www.irs.gov/p...>
