About Muhammadr

How Could I pay my bill onine, I'm not you client anymore and need to pay that bill you have sent to me

I have got a bill of gas consuming by mail, it is contain the bill of my consuming whithen my acomedation at my pereviouse tenancy.When I loged on to the website to pay the bill I found it payed allready, so my question is (is it has been payed through a deduction from my dept card or what?)