Hi and welcome back! It seems as you already posted that question - please verify to avoid double charge.
Contributions into Roth IRA are always not deductible - but they are not equal to not deductible contributions into traditional IRA - so based on your information the broker is incorrect.
A 6% excise tax applies to any excess contribution to a Roth IRA.
To avoid a 6% excise tax - the contribution should be either
--Recharacterized the contribution as being made into traditional IRA - that should be communicated with the administrator of the IRA account, or
--Withdrawn on or before the due date (including extensions) for filing your tax return for the year – if that is a contribution for 2010 – we still have time to correct the issue.
Thank for your assistance