Bad service, transfered 8 times around and got cut off

Good Morning

I booked 3 flight tickets this morning, I wanted to use my Avios points to get a discount. I filled in all my personal information and selected to use my avios points, it confirmed the discount, when I made the final payment I was charged the full amount. I called the customer centre on ********** and I was transferred to 8 different consultants. I asked the 8th consultant for her name she just told me she couldn't hear me and I told her I could hear her perfectly. I asked her to call or email me back regarding my query as I have been on my phone for 30mins and been transferred to the whole contact centre, she told me she can't and I have to call them again. I have never received such bad service before. I am highly disappointment in the brand and would like a manager to contact me.

Kind regards Theresa ********** 556