Not happy with service

Very unhappy client been paying for wifi but most of the time there are no signal but have to pay for a full month. No they change there account details. No when paying for the new month they inform that the old account is closed and they can not reconnect the service until they have the money repayed to them again and in the mean time i must wait for the money to reverse back to my account. I ask if they can juat reconnect for 3 days then once money is back i can send them the payment again no apprantly the manager of Herotel refuse to assist us in this matter and when explaining to them that my rooter is most of the month not working why can they not give just 3 days it not like it will not be paid. So as long as you pay for the full mo th they dont care of you are off or not