How long will I wait to get a new phone?

Can someone at LG or their authorised repair center let me know when am I get my Credit refund or a new phone. My LG4 (Model LGH815M.AESABD) died on the 2nd March 2016. I was by an LG customer care to take my phone to an LG accredited repair shop as I had changed my contract from Vodacom to TELKOM. (Phone is less than 1 year old).I handed my phone on 3rd March 2016 and was told to wait as LG had to approve the Warranty. I phoned today and was told that the part will take 4 to 6 weeks to arrive which I objected. I then requested the Lady at Executronics that I speak to her manager. He told me that the phone cannot be fixed and that they are waiting for LG head office to approve the Credit refund which he could not give me the timeline. In the meantime I do not have an extra phone and all my communication to my business associate are non existent.Please can someone at LG ASSIST me in getting this sorted out. I need to have a phone by tomorrow. I cannot go and buy a new phone if I don't know whether the refund will be in cash or for me to get another phone. I am only contactable by land line ***