The computer shop - worse customer support ever!!!!!!!!

I am a customer of TCS and we have been battling to get proper download speed. Logged a ticket with them and it has been 2 weeks and it is still not resolved. I keep posting update request on the TCS customer portal and getting no response. When I phone them, I get promised that a technician will come out that same day. Been waiting for 4 days, he still has not shown up. Terrible service. Paying week by week was ideal as we only use it during the holidays, but no point in paying for internet when you can't even watch Netflix on the speed we are getting.