Recurring FTTC Fault

We’ve had FTTC for many years at our property and within the last 3 weeks we’ve had a recurring fault

Timeline:
19 May, fault starts and BT raise fault with openreach
24 May, engineer attends and we arrange for someone to let him in as we’re on Holiday, fault appears to be resolved (we get several email alerts through from our alarm which confirms it got reconnected to the internet)
27 May we return home, broadband has stopped working, BT raise fault with openreach
31st May engineer returns and resolves the fault. He makes a comment that another openreach engineer has disconnected our service to resolve or provide service for another property. He also comments that he doesn’t want his van parked outside for too long in case someone notices that he’s now switched it back and comes looking for him
4 June fault occurs again, and now waiting for Openreach to attend

Has anyone else had a similar problem? I’m a bit concerned that this could go on for months with the engineer switching either ours or a neighbours broadband off to provide service to the other property. Unfortunately it’s been impossible to get anyone from Openreach to listen, and I’m not sure if the explanation we’ve given BT will get across to them…

Just report via BT again, then Openreach attend, ask the engineer to escalate to their patch lead engineer. Explain that it appears that your pair is being repeatedly pinched.