Have you enabled Magstripe withdrawals? On iOS enable Magstripe withdrawals from Card > Profile > Security. If you’re an Android user, you’ll need to ask support to enable them for now.
You should also check that you’re a verified user, as foreign ATM withdrawals are disabled for unverified users. On iOS you can compare your limits from your Profile in the app with the limits for verified users listed here or if you’re an Android user, message the support team to check - again, this won’t be necessary 
Unfortunately those limits & charges are set by the Metrobank so they would apply to cards from any bank.