Dell SA poor service

Dell South Africa urgently needs to improve its service. I have repeatedly phoned Dell SA to attempt to get info on the warranty provided on a new PC and the cost of extending it to 3 years. I was put through to 4 different Dell consultants - had to explain request multiple times with no answer. Then I was given a message service. I left a message. Dell actually called back - I missed the call, rep**** and got the same useless automated call centre. They have not called back. Several numbers were tried with no success. The number I later found on the website to request warranty info went out if date in May 2017!