Tuition assistance upto $5,250 is not taxable as wages. Amount over this amount is reported as taxable income on W-2. If this amount is not included on W-2 than it was not taxable.
If that is the case than you cannot take a deduction for education credit for this amount. If you have taken such a credit than you need to amend and correct your tax return.
That is not correct.
Since your employer paid for the education expenses- you cannot claim the education credit.
The education fees was not paid by you but your employer.
Hence, you need to amend and correct the tax return if you claimed such credits.