Mobile Android 7 phone


Hi I have just purchased & received an android 7 from geek shopping site which has 2 sims plus 1 memory card slot.

I have put in a new sim card etc but yet it still shows No Sim card. Also I have connected to my wireless internet but the phone keeps saying No Internet. I had put the sim card in slot 1 as specified.
Could someone please help as I need to know as to why my phone is’nt working properly etc.
I live in Adelaide Australia.
Your help would be greatly appreciated.