Intermittent ISP Afrihost.com

Afrihost is my ISP of a 100mbps unlimited line. Yesterday after 24h and many other midnights my internet goes off and on. Speed test say error or test at 6mbps. Afrihost quality of service is bad and their WhatsApp help line very unprofessional and not helpful. Their operators hide behind the keyboard. I want to warn others to be careful and rather looking for other more ethical ISP