Absolutely dreadful service from Webafrica

I am forced to put a star to get into the box to write my review, but they do not deserve any stars! I am astonished at the terrible customer service that this company offers. I have two accounts. My one account I have tried to get some interaction since the beginning of July with no joy! so I have canceled that account, to end at the and of September. Somebody did call me, begging me to not cancel and promising me the earth - but NOTHING she promised has happened! I have, since Monday 31 August, tried repeatedly to get hold of them to discuss increasing my speed at my account's address, but cannot get hold of anyone. On Monday, I held on the phone for 57 minutes before asking for a call back which hasn't happened. On Tuesday I held for 45 minutes before asking for a call back which hasn't happened. Today, I have been waiting on their supposedly super fast WhatsApp line -with no response. I really don't know what to do anymore?????????