Same person on the 3235912120 number want to purchase item via PayPal and have it shipped abroad

I got a call from this number today, i'm selling a nikon d80 via kijiji.ca and he wants me to ship my product to his co-worker abroad for a gift. The person is offering more than I ask and is offering to pay 120$ for the shipping as well. I texted him that I accept only in person transactions.

He asked me to ship my laptop to nigeria and would wire me the money via etransfer and it coated 130 dollars canadian to get it to nigeria, i found it suspicious when the etransfer asked for a reference # so i called etransfer via interac and they said it was a scam

I received an offer for the add i posted on kijiji. I was selling my camera for $700,and he offered me more than what i asked and plus he'll give me $200 for the shipping fee to Nigeria. He said it was for his co-worker as a gift. It seems like his offer is so good to be true. He was asking for my email for etransfer but i'm a little bit suspicious already, so i decided not to give it a try.

Got taken by this. But hopefully will be getting the item back.
Texted from  a sale on Kijiji. Never did a paypal sale before so had no clue what was involved.
Got all the fake PayPal emails. Was offered way more then items worth. But ended up saying  it was double payed for the items and needed me to refund $600. Then I knew it was a fake.
They are catching on!!! Don't let the get smarter.