30% Packet loss since 3rd of March!!!!

I am on the Uncapped All Hours LTE package, paying almost R1000 p/m! After contacting Telkom support throughout March (since the 3rd of March), I have reset my router as instructed, but I still experience 30% packet loss and speeds of 1.2Mbps up and down while I haven't even used 20GB data. Telkom Support just answers with "it's due to congestion" - so it has been congested even in the early hours of the morning, since the beginning of March???

Highly disappointed with Telkom!!! Next call I make to Telkom is to cancel my contract!