Pathetic after sales service!!!!!!

They told us to upgrade to the 250mbps line, at the beginning of May, as they no longer offer the 50mbps line with metrofibre. From the 1st of May up until now we have not received a speed greater than 30mbps!!!!! We have called, whatsapped and emailed countless times and have been told it's been tested, rebooted, 'fixed' but nothing has been sorted!!! They also send us screenshots of things to check and do but we are not technicians, there's things we do not understand and the instructions were not easy to follow! Then we were told that the issue is not on their side but on metrofibres side and that metrofibre gave us an outdated router. Now we must run after metrofibre ourselves but we took the entire service through REAL BROADBAND SOLUTIONS! Surely they should do the problem solving! I don't understand why it's taking almost two months to find out what the problem is or fix the issue, and NOT once have they sent out someone to check the system!!!!! But always so quick to install, upgrade and INVOICE! WE PAID FOR THE SERVICE LAST MONTH BUT REFUSE TO PAY AGAIN FOR A SERVICE WE HAVE NOT YET ONCE RECEIVED.