I have been availing BSNL Cell One services against mobile No. 9435113357 since the start of its Cell One services in the city, and that way I was one of its earliest customers. Recently, I availed the intertiol roaming facility (IRF) during my trip to the US after paying Rs 5,000 as security deposit (SD) claimed by them. Earlier, I already paid Rs 2,000 as SD for availing ISD and tiol roaming facility. Vide the duplicate copy of Bill No. 540636648 dated February 16, 2018, collected by me (origil bill not received) for the billing period of January 1, 2018 to January 31, 2018, BSNL claimed a total amount of Rs 31,661.71, of which Rs 10,865.34 was shown on account of intertiol roaming GPRS/data.