To increase your GCash limit as an OFW, you'll need to complete a few steps. First, ensure your account is fully verified by submitting the required identification documents and proof of income. You can also link your GCash account to a bank account or a credit card, which may help raise your transaction limits. For more specific guidelines, it's best to check the official GCash website or contact their customer support for personalised assistance tailored to your situation.