I ordered and upgrade of speed from 10mbps to 50 m...

I ordered and upgrade of speed from 10mbps to 50 mbps. I was told it would take 5 working days. That was on 31 july and today 27 august I am still waiting for it to be implemented. Everytime I have managed to speak to someone (which is also hard work) I am told it is link africa who is at fault. Link africa tells me its mweb. All I know is that my order has not been activated and I am exasperated trying to find out when/if it will ever happen. I work from home and need the upgrade desperately. I cannot understand why a speed upgrade has taken so long. Dont you want my money??????