Same here. Phone falls, pen sticks halfway out, phone spins and half the pen is snapped off. I got a new Samsung pen on Amazon for $25 US, connected, works great, no issues with Bluetooth. Can't find the one I bought, but they sell refurbished ones now for the same price. Genuine OEM Samsung S Pen Stylus for Galaxy Note9 (N960) - Yellow (Renewed) https://www.amazon.com/dp/B07NTVMTQN/ref=cm_sw_r_other_apa_i_W0NAEbJCQ0ZD3

I grabbed one from Amazon and so far its been working well. https://www.amazon.com/dp/B07NTVMTQN/ref=cm_sw_r_cp_apa_i_e0cyFbTD9PHD3