NO SERVICE ON 808

I HAVE BEEN CUT FOR REACHING MY CREDIT LIMT - 5 DAYS AFTER PAYING LATEST ACCOUNT-I CANNOT LOGIN ONLINE AND I CANNOT USE MY PHONE AS ITS CUT(BUSINESS PHONE)<br> I CANNOT GET HOLD OF ANYONE AT MTN SINCE LAST WEEK THURSDAY - ZERO RESPONSE ON 808 <br> IM TOLD MTN SERVICE IS DOWN ??????HOW DO WE RECTIFIY THIS IF THERE IS NO ONE AT CALL CENTRE ???<br> THIS WILL BE THE 4TH TIME I HAVE BEEN CUT - AND TWICE I HAVE CLEARED WITH EXCESSIVE ROAMING BILLS THROUGH MTN <br> THIS IS MY FINAL STRAW - I WANT SOMEONE FROM MTN TO CALL ME TO RESOLVE TODAY <br> I HAVE A BUSINESS TO RUN <br>