I just had the following email from them when I enquired, so have contacted my GPs to say no longer wish to have the referral.
Thank you for your email.
I can confirm that we unfortunately, no longer use Mounjaro and therefore you would be unable to continue this with us.
In regards to submitting and logging your foods on the app, you do have this option but it is not compulsory.
I hope this helps.
Kind regards,
The Oviva Team