Unprofessional service from Mondo

I made an online application for the phone on the 1st of June and today is the 12th of June and no one has bothered calling me back. I've called in several times to try and get someone to call me and I always get told the same story "we apologize Sir but we will get someone to call you back", and that never happens. To make matters worse, I had made an application for a phone and an incorrect "phone package" was captured which took four months for Mondo to resolve. I also don't understand why the sales department doesn't have contact number.