Poor Service awaiting URGENT Feedback

On the 13th of May 2015 I logged a call as I had just found out that my son is deaf in his right ear, I sent through a motivational letter for a hearing aid. They then responded that the call was logged with the clinical department who the will be in contact with me. (Still nothing) Discovery say they have a 5 day (Excludes Weekends) response time bulldust they don't. On Tuesday 19th of May I called them and they informed me I need to call on Thursday 21st of MAy. I called them on Thursday where the call was approximately 13 minutes and my Airtime ran out. On Friday 22nd I decided to call them again as they do not have the common sense to call back a client of 3 years. I was on the phone again for approximately 10 minutes and the