You asked what can I suggest you not to be scammed any more and not to loose time, money etc.
The easiest way to check the girl you can manage yourself is to ask the address and send her some flowers through delivery company and make the photo of the girl with flowers.
If the girl says that she does not have cell phone most probably she lies.
Always ask the girl to send you her photos in/near the house, with friends or family etc.
You always can check the girl through our agency. Basic background check costs just 60 USD. So if you feel that your relationship become serious at list basic background check is needed.
Never send the money until you check the girl!!!
Near 90% of the girls that correspondence through the "translation agencies" do not want to find some serious relationship.
There can be such situation, that the "translation agency" can write you the letters from some girl and this girl even can have no idea about this letters. In such way they simply make the money!
