Holiday home connection

Zero rating. Unbeknown to me only the account holder can now connect a holiday home. My husband works offs**** 4 weeks at a time. His phone is not activated during that time. The person at the call centre was resolute they would not connect. My husband works 12-16 hour shifts. He phoned them at 9.20 last night. The call is logged yet they say he did not request the service to be activated.. SO WHY DID HE PHONE!!!He specifically requested it to be activated until Sunday. So I phone again...my third call and ask to speak to the manager. Again I am asked to repeat my details and I wait...and wait..and wait...and am then cut off!!! SHOCKING! Beyond angry! This is holiday home..how do I tell my guests I cannot connect?