Mum is racking up increasing calls to 118 118 - think she is trying to get her parents phone number (passed away 30 years ago) but not 100% sure as she does it in secret. We have made sure there are large type sheets of all family and essential numbers visible in the house. Can't find clear info on Internet so wondered if others on TP know if these can be blocked ? It is a BT landline. Dad worried it is increasing month on month ( about £50 on 118 calls last month alone) Any info appreciated.