Got a text from a long-ago ex asking when he could ring for 'advice' on something unspecified (not a serious matter apparently). For many years we've been vaguely in touch socially but haven't seen each other in five years or so and no longer have much in common.
I replied asking what was going on and since then he's texting/ringing daily asking the same thing and telling me when he's free to have this chat he wants. I replied once more to clarify that I'd like him to tell me how I can help. He leaves voicemails which offer no explanation. (Why ask when is a good time to ring and then ring anyway asking me to text telling him when it's a good time to ring ffs??)
I'm trying to work a little grey rock on this as it seems unnecessary to block his number at this stage. I kind of admire his inability to take a hint! What's a good way to draw a pleasant or neutral line under this?