Activation of international roaming on Network

I am frustrated to say the least as MTN is NOT performing. I've had int. roaming for the past 20 odd years and now all of a sudden it has become a problem.<br> Try and find someone to help!!!!!it's impossible as one has to hold on for ages!!!!<br> <br> I was overseas again and my international roaming didn't work - AGAIN!!.<br> I'm going overseas again on Sunday, I requested that MTN activate my international roaming on the network - it is active on my contract - but the service consultant tells me that there was a previous error by MTN and that it might not be possible to activate the network in time before my departure.<br> He has kindly escalated my request, but I am a businessman and cannot afford to be overseas for 7 weeks without cell phone contact.<br> What can I do to make sure my cell works in Europe????