Hi my girlfreind is inghana and l won't to get her out ,is a working visa hard for her to get

How can l find out if this girl friend l have just mett is a scam have sent her money £50 @ a £100 ,am happy she did not ask l gave as gift is there any way l can have this girl checked out ,am fond of her @ she is butifull ,am need re.asurance have my douts ,need help please

My guess - it's a scam.