If you earned little like below 50 bucks I suggest you to use Paypal (if you have a philippine acc) Paypal will charge 5$ for transferring to credit card, the rate may be low and also this is an illegal method, but this is the way used to get my first earning(I had earned 20$ and I received about rs.3000 here (when I was 16 years

)
but if you have a Payoneer cad I recommend using it if you want fast money, fees would be 1$ for Fiverr-Payoneer in 3,5 bussiness days, 3$ if you want it fast, anyway, If you don't have a card no matter what just order it now u will receive it by a month or somewhat.you can receive funds by any other means in the meantime,I haven't used payoneer cards foe withdraw funds , but I had two cards.
anyway i don't know shit about bank transferring,so you better ask some one else
u may ask on the fiverr forum or fiverr group srilanka (FB)
here is some link you may find useful-https://usamaarshad.com/withdraw-funds-fiverr-pakistan/ (it is somekind of applicable to Sri Lanka also)
https://forum.fiverr.com/search?q=Fees on withdrawal
-xtizi