Please all I need is recommendation of any broker for the stock option trading that accepts Nigerians please����

Please I need advise or clarification, I think stanbic IBTC is trying to fraud me.
I made a purchased an online ticket from Emirates airline for N175,391 with my naira master card and I was debited accordingly, a receipt and the tickets were sent to my mail confirming the same amount. Only for a few days later for Stanbic to debit me another N18k+ telling me it was a reconciliation of a Mastercard rates and I told them I have been doing different types of transactions with the same card both home and abroad. I called Emirates to confirm, they told me I have been charged according to the fare I saw and I receipt they sent which is the same amount. There has never been such a thing before and they are telling me it's new.... Without notifying me. The transaction was done in naira on a local website which is www.emirates.com.ng. How come this fraudsters are making things up to steal my money. Please I really need your contributions on this... Thanks

Hi everyone, just to contribute to the documentation procedure...u don't need to pay for any hotel reservation for ur documentation, all you need do is visit any travel agency or vega solution which is located on the same building with the SA VFS ... U pay 1k to get a booking done for you which you can cancel the moment u r granted a visa...I did the same for both my flight itinerary n hotel booking(2k) and I was even lucky they didn't ask me for any repatriation fee...

@Collins, pls I need more explanation on this info on my visa, it read thus:
No. Of entries: multiple
Conditions: EACH VISIT NOT TO EXCEED THIRTY (30) DAYS.
MUST HOLD ONWARD/RETURN TICKET
thks in advance