Worst Service and also not getting any feedback or response from them

Worst service from a courier company I have ever received. I yesterday(22/02) to follow up on an order from WebAfrica, they then escalated so I can get my package the today(23/02). I phoned again today to find out what the response was on the escalation and they told me they will escalate again and I am still waiting for that call. Since 12 they have been on offline not getting through to them. Not the first time I am struggling with them. I don't know why companies still use them.