Coins.ph does not charge fees for claiming/receiving Western Union transactions. The recipient will receive the exact amount on their MTCN. However, Western Union does charge fees to the sender, upon creating a transaction.
Fees for Western Union transfers vary based on sender location, recipient destination, payment method, and delivery timing. To estimate the fees for any Western Union transfer, please go to this site.
If you are sending from outside the Philippines, please note that exchange rates will vary based on currency and transaction amount.