How to cancel Globe order (plan renewal + device)

Hello, I plan to cancel my Globe plan + device order (Iphone 17 pro) because it's taking too long to be delivered. My current phone's battery has expanded and is now a safety hazard, so I can't afford to wait any longer and I plan to just buy a new phone elsewhere ASAP. I've already emailed Globe of my request and called customer service but to no avail. Is it safe to buy a new phone now while waiting for Globe to cancel my order? Will I be charged any pre-termination fee?