Bad service on logged call

5September2018 I logged a call to replace my oven element after it was replaced earlier this year. I have been informed it will take 1-2 days and that there will be no call out fees since it was still under their 3 month guarantee. On day 3, I was informed that my call will be attended to on the 10th, But today ****h) I was informed that the technician will be assist me on Thursday the 13th. How can something so small that should take less than 30min take so long to be attended to? This is awful bad service.