MTNL — Validity of prepaid card

As my MTNL prepaid Trump was disabled and I was advised to recharge the card I paid Rs. 100- each on 10/1, 16/1 and 17/1. However, as I had not chosen the proper validity, each time card was revalidated for one day only. I desire to revalidate the card for a full year. I made several attempts to talk to representative of mtnl during last week. I had tried on 11, 12, 13, 14 & 15, . If I was told about wrong selection of the plan, I could have chosen correct plan at least on 16/1 and 17/1.
My submission is that that my unused balance of over Rs. 277- according to their record should be used to revalidate my card for 365 days.