Bad quality item leaving bad taste in my mouth

I'm normally very happy with Makro. They had become my new go to as opposed to Take Alot. BUT - I bought a R1000 (on sale) bike for my kid for Christmas and it has given me NOTHING my problems. 1st: pedals break right off - no problem, I buy a new set and put it on. 2nd: Brakes fall off - okay he doesn't use them anyway. 3rd: The chain starts falling off, I keep putting it back on. Eventually the chain gets caught on some part of the bike and snaps. Now this R1000 bike is useless and it's not even been used for 2 months. I try to contact customer service to log a return but I can't because my order is not updated in the system. I'm told I must send pics?? No - I want to log a return for repairs because there is no way I am sitting with this bike that is now useless after LESS than 2 months [he got the bike 25th Dec.] I'm still waiting for feedback regarding my request to have a repair. I really hate having to jump through hoops to be helped.