A:Hi Steve . What do you think of the new supplier ? B: We haven't had any problems so far . They offer a <MASK> technical back-up service . We've called them in three times this month . They always arrive within a couple of hours . A: That's good service . Do we have to pay extra for that ? B: No . There's no call-out fee . It's included in the annual service contract .
24 - hour three minutes couple of hours