Mondo unable to offer decent assistance

Joined a Data contract about 2 weeks back, received a Sim card on monday the 21st. Accosing to their information the Sim Card is activated within 48 hours.but the truth is that today is the 24th ,i made several calls to the where they advised me that it will be activated a day ago, even now i ak still waiting.last call that i did i was told that my Sim will be activated in 1 hour, now its 5 hours later and i am still waiting, what must i do? Call again?? Very very useless!!!!