Disappointed 😞 😥 and upset with MTN(east rand mall)

On the 31st of October went to Mtn eastrand mall,to purchase a home router that when I left they failed to activate and said its a network error I must activate when I get home ,and was told to plug it in and follow the instructions sent by them and it would work,I tried with no luck,on the 3rd of November took the router to MTN Lambton for them to check for me as I was not winning,they checked it out and told me the router had a problem,on the 4th then went back again when Maki told me she will give me a call with step to step instruction I then followed thru and nothing. I then drove back to Eastrand mall then they tried with no luck, I said they must cancel the contract or give me a new router and that was Thursday the 4th. I have then been calling with them putting down the phone,on Friday the 5th.. Nothing has been done. Its today the 10th and I called to check on the progress,then Jennifer who is the store manager dropped the phone on my ear. I am highly disappointed and upset with treatment I have received from MTN South Africa(east rand mall).