Are there any locker facilities at the PTE test centres to keep your belongings?

As per the durations described by the Pearson PTE for each section of the exam, the minimum total duration of the PTE exam comes to around 2 hours and 10 minutes. But the officials from Pearson often stress on the fact that test takers with often a good practice tend to complete the test in two hour

There is no way to change your PTE test centre directly after booking. In order to change, you must cancel your current test appointment and book a new test at your desired new location.

To find a Pearson-approved test centre in your state, you must visit the "test centre locator" or the Pearson Vue website. There - on typing the name of your city or state, you will get the list of all the PTE test centres available in your area.

Generally it is recommended to take the PTE exam at Pearson-authorised test centres only as these test centres - 

• are equipped with superior and standardised testing environments,  
• have dedicated professional staff, and
• provide better technical support if a glitch occurs.

You can change/reschedule your PTE exam date for a maximum of 6 times. You must have at least 14 days left for your PTE exam to make changes to your test date. If there are lesser than 14 days left, you can no longer change or reschedule your test.

At this point, you can only cancel your PTE test app