first meter reading scheduled 16/01 first payment reminder 19/01 ,yet have taken fist standing order £110.00 whats going on ?

@melv You elec switched to us on the 11th of Jan and the gas will switch on the 20th of Jan. We sent a first payment reminder on the 9th of Jan & a first meter reading reminder on the 6th. We take a payment on the day you switch to us hence the £110 has already been taken. This is because take payment in advance.