ESA telephone assesment, late notification and no call.

I hope someone can advise me on the best course of action.

I have been on ESA for some years. After completing one of the bi-annual ESA forms in October I have just received notice today (14 May) of a telephone assessment to take place yesterday (13 May). The notification of the assessment is dated 10 May, giving one postal day. Importantly, the scheduled call was not received.

I’m minded to contact DWP to confirm everything is still in order rather than contact the Health Assessment Advisory Service as I have no confidence in them following this and previous experiences.

I would appreciate best advice, thank you.