My Child had no Christmas gift thanks to Makro.

I purchased a bicycle online and it was delivered a few days before Chrismas. Firstly if it had been mentioned on the ad that it's an assemble yourself exercise I wouldn't have bothered. I assembled bike only to discover that the back breaks were non functional due to being set too far (a manufacturing fault) trusting that Makro is a good company I called the customer line and reported this unknowing it would be the start of endless calls from my side to Makro. We will send someone to collect and replace. It's Montague Gardens fault not ours, they say they're busy. We'll get back to you (obvioously never)> were just a few of the excuses I was given. Everytime I called nothing was recorded and the consultants had no clue what I was talking about. I even demanded to speak to a manager called Ruwaan on 2 separate occassions who promised me nothing but BS and nobody ever got back to me to this day. I even demanded a refund because i'd just about had it and nothing has happened yet. Needless to say my daughter had a miserable Christmas and holiday overall with her promised bike just standing there with Makro staff not caring, breaks are the most important part of the bike who would let their child ride a bike without breaks? I even called Montague Gardens who just kept keeping me on hold then cutting the line. I'm very disappointed in Makro, it was previously my favourite one stop if this is the kind of people you employ I'm concerned. The conversations were over Christmas and New Years period and up until today nothing's happened, more than 3 weeks, what's the point of having customer service?