My favourite was my GP surgery.
I rang to book my newborn twins in for their 6week check and 8w jabs.
Receptionist: That's fine, just bring in their hospital discharge paperwork.
Me: They're in NICU.
R: So when they're discharged, come in then.
Me: But we don't know when they will be discharged, it might be weeks, and if it's say 4-5 weeks from now, then you won't at that point have two triple appointments left that they'll need for their 6 week check.
That bit took two receptionists and the practice manager to sort. It was totally baffling -- surely babies being in hospital for a few weeks after birth isn't that rare?
Anyhow, this was the best bit:
Me: Okay, thanks so much for that and sorry we're a bit of a nightmare! Can you just tell me when those appts are?
R: No. We can only disclose appt details to the patient.
Me: Er. But the patients are like 2 days old.
R: Yes, that's our policy.
Me: Right. So given they are probably not going to be attending the appts under their own steam, how am I supposed to find out when the appt is?
R: We'll write to the patients.
Me: Okaaaaay...... so, the letters will come addressed to my children at our home. So I'll just be opening them, of course.... so why can't you just tell me now over the phone?
R: I can't disclose patient details but if you go opening other people's post, I can't help it.
Me: Thanks! You've been very helpful not so much