Not a full refund?

As soon as you helped yourself to £34.99 from my account I requested a refund and was given £32.07. Why have I been charged £2.92 for 17 hours of the Ring doorbell annual plan? before I'm asked to contact live support they have been useless.```MeWhy is the refund £2.92 short? is that what your charging me for 17 hours? 5:26 PMMohamedIt's how the system works. 5:27 PMMohamedIt's automated. 5:27 PMMeThat's not a great answer. Someone must have developed it to work that way 5:27 PMMohamedThey sure did. 5:28 PMMecomplaints email address please? 5:28 PMMohamedWe don't have one Michael. 5:28 PMMevery handy 5:28 PMMohamedSure is. 5:28 PMMohamedIt's been an absolute pleasure talking to you today! In the meantime, would you like any further assistance for now?```