Phone to them is constantly engaged. 15 days and n...

Phone to them is constantly engaged. 15 days and no tracking number or idea where my order is. 4 generic emails saying dispatch is 5-7 working days and I'm still in that window...no I'm not ...10 working days in and no idea what is going on.
I have requested that they call me but nothing yet. It's my sons birthday next week and I don't believe it will be here in time. If I could contact them for refund I would. So if you actually read this Quick fix mobile I would like a refund please! Don't use them.