Cannot use email

Often my Outlook stops receiving mail. Repetitive problem that demands several calls to Mweb to rectify. It appears that the quality of the provider's technical staff is inadequate. Last time, around 3 weeks ago, it involved several calls and 3 technicians to resolve the problem. Today, as the problem involves not only my PC Outlook, but also opening emails and attachments via the Mweb website, I was told that the earliest they can help me is Thursday at 08h30, when another tech will phone me. TWO DAYS FROM NOW! Two days without service. Can I do the same and tell my employers that for 2 days I will not react to their instructions?Meanwhile, I carry on paying for a service but I get no connection from MWeb. Talking about neglect of customer needs? The typical answer I get from MWeb is that the problem is in my side, not theirs. This is obviously incorrect, as when I continue complaining, eventually they sort the problem out: meaning it was always theirs, but they fail to find the root cause and resolve permanently. We deserve better service from MWeb. Email is a critical tool. I cannot accept a two day delay (maybe even more)!!