paying twice for the same mobile number
I upgraded my SIM and have noticed I am being charged twice for the same mobile number. I cancelled my direct debit for my old sim but keep being told I have an outstanding balance every month of £8 and need to pay it now even though I paid the first amount , thinking it was a balance from my old sim. My old sim was for £34 my new sim is for £8 which is paid by direct debit