Very bad service from Defy on exchanges

The worst service I received from a company in my whole life! I have been waiting a month now since inspection was done on my newly bought tumbledryer that needs to be exchanged with a new one. Since we baught a faulty produc***** a month later, no feedback from company, no one following up on their services... i need to use so much airtime ro call then everytime. Every time its a different excuse! I need my tubledryer as our new complex doesnt have washing lines as yet