Please help!!!

Hi everybody... Iam in a big problem.. In my CPT exam form i entered my SRO number wrongly as 0262733 but my actual number is 0262732...I called up ICAI,and they asked me to mail or send a letter to Chennai.And i did that..Even though i mailed am still worried,whether they gonna take any action.

I think this is the biggest mess i did ever!!!

Has any body gone through this situation????