BSNL 3G Data Card — the signals are not constant at any place

Address:

Thane, Maharashtra

I purchased 3g modam and a data card from Bhiwandi
telephone customer service. I am using the same at my place at desktop. The signal strenth is fine but the bars are not constant and hence at every fluctuation the net connection broken and I am unable to do any meanninghful serious work on net. I have visited the customer care centre at Bhiwandi But the persons attending the customers do not have any know how of the 3g data card they simply msell the same across the counter and most of the time they are not at the tables to attend the customers. Every one shift the burden to any other official who is absent the material time and ask me to come later.