SKY-FI Internet (non) solution

Can I strip them of even their one star? I have never experienced such bad customer service from a service provider in all my life, the interactions up to now (July 2019 - November 2019) has been very one-sided with me having to keep on phoning and following up with them every time I report a issue. Pay for a 10mbps line (up & down), at 03:00 am download speed may reach 4mbps but 0 to 0.5 upload speed - and it deteriorates further as the sun rises and sets. My personal opinion - STAY AWAY, GO INJECT YOUR MONEY INTO TELKOM TO INSTALL FIBRE FASTER.....