I didn’t realise Facebook was easier - I might have to give it a try!
Confession: I haven’t used Facebook to ‘buy’ anything since the
highly embarrassing Café World Saga of 2011. I bought 'stuff' as a once-off, and the bank decided to cancel my credit card due to ‘unusual activity’ (apparently protecting me!). I then had to call the bank and explain that,
“Yes, Mr Bank Teller…that was actually me buying fake equipment for my fake Café". 
(For the record, shortly thereafter I saw the error of my ways and deleted the game lol).