As a Filipino, Coins.ph is the best wallet not only that I can store my Bitcoin but they already upgraded their system and now it can already has its own Ethereum wallet. Which make for us Filipinos to easily withdraw or encash our coins and deposit our money and easily convert it to Bitcoin or Ethereum. Though I'm also using Electrum for a much secured storage.
What do you mean that Coins.ph is the only wallet available for filipino? Why you can't use other wallets?
All wallets can be used by anyone in the world and the wallet you saying is not a wallet even it is an exchange which cannot be used to store our bitcoins for any reason.
You need to improve your reading comprehension skills. Where did OP say coins.ph is the only wallet available for Filipinos?
You can use your Electrum for storing bitcoin and whenever you want to cahsout just move it to the exchange wallet and it may take only upto 30 minutes or less but your coins will be safe in a wallet.
Maybe OP already knows Electrum? From the post you quoted above:
"Though I'm also using Electrum for a much secured storage."
This is the type of post that makes me wish we had some kind of "demerit" button.