March 23, 2014: NT has removed the credit system in their GSM prepaid service, that was quite a problematic to the GSM data users in Kathmandu with the data service barred problem. It is known that the charging of the data service in Kathmandu is made real time as it is in the other parts of the country. Previously the balance of the data service used to be deducted after some time of the usage and customers even had negative balance in their mobile, having a big surprise. Customers were quite annoyed by the procedure that their mobile kept on surfing even if the balance crossed zero and it all came to them after barring the data service with huge amount to recharge for restoring the service. It also took more than a day to get the service restored even if they recharged their balance.