H1B, H4 Visa

Iam a resident of Hyderabad Andhra Pradesh. I had taken an appointment at the Chennai counsellate on Jan 23. Inorder to have an appointment at New Delhi I cancelled my Chennai appointment and tried for the new appointment. I filled the DS 156 and DS 157 formats and finally arrived at the calendar page, which showed the schedule post of January at chennai. On clicking next (>) on the calendar I got the dates of February at Chennai. Once again on clicking next (>) on the calendar I could get the schedule of February at New Delhi. From those dates I selected Feb 8 and continued the confirmation process. To my surprise I was alloted an appointment on Feb 8 at Chennai Counsellate instead of New Delhi.
 
Not knowing where the mistake has happened I tried to reschedule my appointment date and this time I selected Feb 9 at New Delhi but was alloted Feb 9 at Chennai counsellate. Iam herewith attaching the snapshots of my second attempt to have an appointment at New Delhi. Unnecessarily I had to forgo a chance of cancellation and rescheduling of my appointment dates due to this error.

So friends pls let me know if any got the same situation?