Slow connection

Hi my name is Ashay Mansraj I keep having problems with my fibre speed and connection it keeps saying connected without internet connection or the speed is very slow please help i did log a ticket with my isp my ticket number 01180236 can you guys please send someone out to assist with the matter as I having this issue for a few months now and I have been a loyal customer for many years my contract number is 066 232 5003 my address is 195 fernham Drive Redfern Phoenix Durban please assist me with the issue as it's urgent thank you