It is preferred payment method. Mind please, that the payment goes instantly, if you buy Bitcoins for the first time it can appear a bit confusing, but after the first try it will go smoothly. When will you need some help please check this: https://www.buybitcoinworldwide.com/
Bank Transfer / Western Union
In final step of the order you will see Western Union / Bank Transfer select this one please check details again and send.
Next please check your email in your inbox, junk or spam folders for further instructions on how to complete your transfer request.