As per DoT officials, if the company sticks to its payment plans, the department will not invoke the bank guarantees. But if it fails, then the guarantees will be encashed, they said, adding that the DoT has not met any potential investor in the company. "They (Vi) have written to us that significant progress has been made with several groups of investors but nothing specific has been informed by the company," an official privy to the details told ET on condition of anonymity.