Four incorrect deliveries in one month

It seems as if Courier Guy is growing too fast and doesn't need the business of some of it's oldest and most loyal clients anymore. We currently have a situation where urgent stock which was collected in Nigel and should have been sent to us in Pretoria, was sent to Secunda. This is now the second time in 30 days that the exact mistake occurred and it is costing our business time, money and reputational damage. The solution that Courier Guy gave us this morning is merely for us to wait for an entire day and for them to only send it to us tomorrow. In our industry that means two days wasted. An incident also occurred in December where a package was to be collected in Cape Town and sent to Burgersfort in the Free State. This particular package took 8 working days to be delivered to our client in Burgersfort due to numerous mix ups from Courier Guy.This specific delivery was for a product a client bought from our online shop. Needless to say it is unacceptable to have a client wait for a package for 8 days after purchasing a product online. Every an incident like this occurs we waste many working hours trying to resolve these matters telephonically, and up to now no one could give us an idea of what caused all these mix ups. we would appreciate feedback from a senior staff member of Courier Guy and also give us a reason to keep on doing business with them.