British gas advertise they go out their way to look after vulnerable customers, their smart meters are malfunctioning because when vulnerable customers such as my disabled daughter pays a top up sum it does not register on her meter or the small read out remote which stands in her house, she has been left with no electricity at times because of this, when you eventually do! get through to a human being they try to text you a 16 digit code which is very complicated to enter into your smart meter, impossible for a disabled person such as my daughter who cannot even answer her telephone because of her difficulties, I a 75 year old got through after trying numerous numbers and explained the problem which was not the first time, some months ago she had the same issue, the advisor after trying to get me to accept a text with a 16 digit number which no one could deal with I ask her is there not another way to solve this, reluctantly she said I will solve it, within minutes she told me the money my daughter had paid over £67 was now registered on her smart meter so why could she just do that in the first place, British gas already have my daughter down as a vulnerable customer they should have engineers on hand to assist handicapped people when difficulties arise, for such a big concern they are very lacking and should be investigated by a utility ombudsman.