Is paying by bank transfer/western union free?

No,they are not free.

You may have to pay a fee when the money is sent to Myobdii.com by Western Union/Bank Transfer.

If you pay by bank transfer,please ask your bank to provide you with clear details so you can account for this fee when you pay. For example, if you are paying for a Myobdii.com order of $500, and the bank will charge $50 to transfer, please submit for the transfer $550. If you only submit $500 then the payment that arrives with us (in this example) will only be $450 and we won't be able to send your full order.

Myobdii.com pays for any bank currency conversion fees within China Merchants Bank. You can submit bank transfer payments in any currency.

if you pay by western union, you need to go to an western union branch. Please also ask them to provide you clear details so you can account for the fee.Please submit the amount including transfer fee.