Hi, I can't change or cancel my Avios bookings in MMB. I get a message to say 'contact us', link takes me to details of general 0800 number. I was on hold for 45 mins as soon as I said it was Avios, agent said I had to speak to Exec Club and she'd put me straight through. Still on hold 50 mins later! I'll have to try again another time, but does anyone know if it's 0800 general number or Exec Club line? Thanks.