Pathetic after sales service

Been having a really hard time getting my Defy Ceran hob fixed/replaced by Makro. Call was logged on Monday 01/07/2019 with Makro head office. Call reference is 138099. Technician's only came out on Saturday 06/07/2019 to inspect. From then till now we haven't had any further updates as to what is going on. We call every other day and are told someone will call back, but we ourselves have to call back,only to be given the same story everytime. Pathetic. I won't buy from Makro again, and will definitely advise my family/friends/colleague's about my experience with them. After sales service leaves alot to be desired. It is now 2 and half weeks since my problem started, but we're still running after them for some kind of service. I purchased the appliance from Makro with extended warranty. Makro needs to honour that warranty now... If their service provider is giving them the run around, that should not affect me, the consumer.