Double subscription fees

Hi,

I am going through my banking and I see that Microsoft is billing me twice every month??? The 1st is R119 on the 5th of May and the previous month it was on the 6th of April. The second is for R79 on the 30th of April and the previous month on the 30th of March.

Why am I paying more than once for my xbox subscription? I have 2 xbox in the house but surely I do not have to pay twice for this?

Please advise