Update the quotas (100->150GB, etc.)
The Home::1 has a quota amount per month, either
100GB, 200GB, 300GB, 400GB or 500GB. When the quota is reached various things could happen such as the line being blocked, the service set to go slow or for the system to automatically apply a 50GB top up (and charge for it) More details below...
The 1TB tariff is different - you cannot top up or block the line, nor can you balance quota between multiple lines; instead, they go slow automatically when the quota is used up.