Rate limit override for certs issued for a domain delegated to a customer - who should request it

[irbe]

Hello!

I would like to clarify who has to request a LetsEncrypt rate limit override in a hosting provider/customer scenario.

We have a setup where we have a domain in PSL. When a customer signs up, they are allocated a domain, i.e customerX.tld

They sign up devices and in some cases, these devices can be provisioned LetsEncrypt certificates via the DNS-01 challenge flow for DNS names like deviceN.customerX.tld.
All of the DNS infrastructure is owned by us (so a customer device who needs a certificate mints private key locally and talks to LetsEncyrpt to get a cert, but the DNS resources are provisioned our side (not customers')).

We are now having a customer who is predicted to need to issue certificates for slightly more than 50 such devices at once, so we need a slight rate limit bump for the 50 unique certificates per domain rate limit.

We are considering just submitting a request form to bump the rate limit for customerX.tld domain, however I was wondering if there is a preference for whether it should be us (the hosting provider) or our customer who submits the form?

Thank you,
Irbe

[mcpherrinm]

It doesn't matter too much so long as whoever submits the form can explain the use-case, answer questions, and be reachable in the future for any follow-ups. Ideally it would be the Let's Encrypt subscriber, ie, whoever is running the ACME client and has agreed to the subscriber agreement, etc. But that doesn't matter too much, really.

[irbe]

Thank you very much