Be careful of any offer to simplify something. It often starts that way.
Let me make it easy for you...
Let me make you rich...
Let me double your coins...
Let me show you how
very easy it is to get btc for payoneer...
If you show interest, you will be invited to chat on Skype or somewhere private where the scammer can scam you undisturbed.
If the offer is a P2P transaction, do not forget to use escrow. A list of trusted members here offering escrow services is on this link:
https://bitcointalk.org/index.php?topic=855778.0Heed this advice and your money will be safe.
Thanks a lot for your advice. Is there any exchange which provides escrow service and accepts payoneer mastercard?
I tried coinbase but they don't allow bitcoin buy & sell in my country.