Non-existant customer service

What **** customer service! I ordered AND paid my 5G router at the end of December. Eventually recieved the package on the 2nd January. What a darn struggle to get internet access. You can't phone them - number congested. Request callback upon callback with NO response. Send them whatsapp messages, taking forever to get a response and almost immediately the chat closes. I have been struggling for more than 48 hours to get in touch with someone to just help me activate my internet. But no, you have to pay upfront for a service that you don't even get!!! This is utter nonsense!!!!