Poor After Sales, Arrogance and Incompetence

I purchased a gas hob from Makro along with an extended warranty approximately two weeks and duly booked a verified installer to install the hob. Upon opening the box to install the hob we discovered that there no fitting to connect to the hob, no manual and no spare jets. We went to Makro New Market and asked if they could assist, however Cedric refused to understand. He wanted us to purchase a regulator and could not comprehend that we were talking about jets and a manual. Cedric then said we need to return the hob. This is ludicrous as we have the fitter booked. The store manager then came to assist, but Cedric became obstinate and said he would not assist unless we provide a picture of the missing part. How do we provide a picture of something we don't have? We therefore had to go elsewhere to purchase the connector. I would still like the manual and spare jets. How can you want us to bring back a hob every time there is something missing? I suggest that Cedric be re-deployed where he does not have to deal with people as he lacks that courtesy to deal with people. Additionally, some product training would go a long way in this case.