Before submitting any information, I’d be inclined to email them asking, why after 15 months of the charger being installed:
(1) The grant hasn’t already been applied for.
(2) Why Ohme are chasing you for further evidence as outlined under the updated April 2026 rules
(3) That you require proof of the most recent application status from OZEV. Failure to provide this, you will make further enquiries before submitting further evidence.
I am OZEV registered as a commercial installer and being chased 15 months or more after having your charger installed is very odd and I would want evidence it has not been claimed or there using your address to try and claim under the new rules (possibly as a second charger)!