Disappointing service

I called the SPARK call center to request confirmation that my kids are enrolled at a SPARK school. I was told to send an email, which I did. The registrar returns to me with 1 letter that confirms enrolment of one child, although 2 kids are registered. I spent about an hour on the call on Friday because the line got dropped every 15 minutes after holding, trying to resolve this matter as it is urgent from my side. I had chat with one of your consultants on the messenger app, the consultant referred me back to the registrar and stopped communicating with me. Despite the 5 emails i sent, no one is coming back to me. I emailed the registrar 5 times, no response. why on earth did the registrar only send one confirmation nd thereafter choose to ignore me? I on earth must i do to get service?