Bad customer service

I've ordered disposable razors from Pick 'n Pay Rustenburg nearly four weeks ago, every week I phone to check on my order I get the answer of we still waiting for stock to arrive,<br> Sad thing is I've paid full amount for the stock. I'm expecting people to go the extra mile, they don't even bother to check with other store if they have availability,<br> I am so frustrated right now I don't know what to do. this is really a bad service, I am now going pick n pay to pick n pay trying see if I can get some. I don't no why I am doing the run around for them while I paid them for the stock.<br> can someone higher than the manager call me and arrange my order.<br> I called customer helpline, they promised someone will get back to me. till now nobody called,