Monthly fee to small for support

We have an mweb premium business account. We need to change information on our host registration information. When I contact mweb business support they tell me our monthly fee is to small to get support, I must phone mweb connect. When I phone mweb connect they tell me we have a business account and I must phone mweb business. After literally wasting 8 hour with phone calls and e-mails the last person I spoke to told me the problem will only be fixed after 5 day. It is now 7 days and the problem is still not fixed. Why does mweb business advertise a 4Mb uncapped ADSL Premium Business account for R1859-00 per month but when you need support they tell you your account is too small. Mweb can't wait to take our money every month, but in return they REFUSE to support us.