Do not rely on other people to resolve time-sensitive issues when you can easily avoid it.
In this particular case as soon as it's clear the domain hasn't renewed despite being billed then manually renew it using the usual user interface, pay the extra $10 and then contact support after to get one of the charges refunded now the time-sensitivity is gone.
The stress alone isn't worth being out of pocket $10 let alone only for a week or two.