We automated the free hotline for urgent matter calls available 24/7/365. The fault-tolerant platform assures that 100+ calls can be concurrently processed, allowing clients to reach specialists of the call center at any time regarding the use of the fuel cards, seeking the nearest gas stations, checking the status of their personal accounts, blocking/unblocking cards. Round-the-clock call service is especially vital for solving urgent matters that drivers may encounter when driving on highways.