Pathetic After Sales Service from MWEB

I recently signed up for Fibre with MWEB. My sales person is Stephanie Hendricks. I was informed that the Modem would be delivered before installation of fibre by Link Africa. The after sales service has been pathetic, I have held on for close to 30 mins on the phone (on numerous occasions) and have emailed Stephanie twice with no response. I had to contact Link Africa personally and arranged to expedite my installation. I would like to cancel my request as if this is the after sales service being received, I don't want to be tied to MWEB. I am running a business and not having a modem is causing me much distress.