How to pay with Bitget?

Excuse me, could you please elaborate on the process of making payments using Bitget? I'm a bit unfamiliar with the platform and would appreciate a step-by-step guide on how to go about it. Specifically, I'm interested in knowing how to initiate a transaction, the different payment methods supported, and any fees or limitations I should be aware of. Additionally, are there any security measures in place to ensure the safety of my funds during the payment process? Thank you in advance for your assistance.