No honest means of support and slow internet

I've just had my fibre installed which was supposed to be an exciting experience for me - and it's just turned into a total nightmare. Webafrica literally don't have a contactable support desk. My internet has very very large latencies which are very frustrating and I've been trying to connect to a support consultant for days now. I've genuinely made around 12-15 attempts and either get cut off, it times out, or something goes wrong.