Apple pencil

What model of iPad Pencil did you buy exactly? Going by the price it seems to be the Second Generation Apple pencil.

Your model of iPad Pro is compatible with the first generation Apple pencil only. Your model of iPad does not have the magnet charge area for the second generation pencil.

See here: Use Apple Pencil with your iPad or iPad Pro - Apple Support

You purchased the 1st gen 2015/2016 iPad Pro.

Only the 1st gen Apple Pencil ( the one with the silver/metal top band ) works with this model iPad Pro.

If you paid $130 for this Pencil, you purchased the wrong Apple Pencil!

You purchased the 2nd gen Apple Pencil.

You need to return this and purchase the $99 1st gen Apple Pencil, instead.

For either Pencil, make sure you always keep the Apple Pencil charged up to some percentage level ALL THE TIME!

Never, EVER let the Apple Pencil battery drain down to 0% and leave it in this flat state for any prolonged period of time, EVER!

Best of Luck to You!

Have you inadvertently purchased a second generation Pencil?

Apple Pencil - Select - Apple