Mediocre Service - Follow up!!!!!

What lousy Customer Service!!!!!! On the 3rd of December, I called about a part for our fridge. I was put through to the Service Department, where I held on for several minutes until the call was ended - unanswered!! I then called back and was pretty cheesed off. I told the Receptionist to please not transfer me again to waste my airtime. She proceeded to be quite helpful and took down my name, number, query and model number of the part I was requesting. She said that someone would call me back in the morning. By 2pm, the following day, I called back - only to be told that they hadn't as yet read their messages - someone would call me back. I AM STILL WAITING!!!!!!! Only in South Africa - really. Why are we so slack???? and why do we accept such mediocre service????