Problem changing my DS 160

I was filling out my ds 160 form and applying for a visa
appointment
simultaneously . So while applying for the visa appointment
I quickly
inputted the ds 160 number,the appointment was booked
and confirmed
and the date for the appointment was 31st of March
9am,while I was
still filling my ds 160 I haven’t signed yet. Suddenly on my
ds 160
page an error occurred I could not continue again. So later I
tried to
retrieve my ds 160 form I couldn’t is said surname or birth
year does
not match. So I tried to complete a new ds 160 form filled
completely,
then tried to update my profile at us visa in application
portal by
putting in the new ds 160 number and I couldn’t, I even
tried to
reschedule the appointment to April 1st 2016 thinking
maybe I may be
able to input my new ds 160 but I couldn’t. So is it possible
to
reprint appointment confirmation and input my new ds 160
number.

Call to the customer support on any center they can able to help you to resolve the issue. Its not a problem. Dont worry much