Sorry to know this. May I ask if your SIM is LTE capable? If not, you can proceed to the nearest Globe Store to request for a SIM replacement with the same number. Just bring the actual SIM and 1 valid I.D.
Besides having an LTE capable phone and SIM, please take note that LTE also depends on location. You can refer to this link Network | Globe Telecom to check if your area is covered.
Hope this helps.
Yes, my sim is LTE capable. And my friends have LTE coverage when we are together. They gave me the D724 model. I think the D722 model of LG G3 Beat is the one that has LTE. I need to replace this phone with that model.
I went to the Store to have my phone replaced but they haven't given me a feedback yet. It's been a week already...