Design "How to deal" - repost

I am doing online trading, I need my customer understand how to make a deal with us (reference [login to view URL]) Please suggest also if my steps by steps doesn't make sense. if possible, can we deal with whatapps. thanks 1. customer browsing 2. customer has an idea want to buy 3. bank in money via online 4. send us the postal address 5. we courier with tracking number 6. customer received parsel 7. write review to us