worst service ever

I ve been struggling since october last year ever since receiving my new cordless phone to settle problems with the phone.I get sent from pillar to post ,have spoken to countless people who make empty promises and never call u back as they say including supervisors and teamleaders or fix ur query.reference numbers are given to u but when u use them no one seems to know wat ur talking about.your query gets forwarded as they say and thats all.u never hear from them again and the query stays unresolved.u can never track down the person who helped u because they refuse to give out any surnames.everytime u call in u have to explain the problem from over to a new person who cant assist and sends u to another person who cant assist.dealing with them is torture and very frustrating.all they have to do is re imburse airtime that someone in their call centre loaded for us but which we never received to the amount of R 100 which seems to be impossible for them to do.why must we pay the price for their incompetence.