Oanda is relatively safe, is a member of nfa and cfct, and has relatively high net assets.
But if you don't use a credit card to deposit 100 USD, you can use telegraphic transfer. Even the cheapest remittance by bank mail costs 90 RMB+1 1 USD, one RMB * * * 170, accounting for 25% of the deposit amount. Is it too high, 100 RMB is too expensive to sit on?