The bank is not. My debit card was declined when I attempted to pay the bill, despite having the funds. It’s because the amount exceeded the maximum daily limit.
So, I have to wait until Monday, visit the bank to get the limit removed, then head back to the service shop to pick her up.
I also asked them to hold onto a piece of rubber from the original differential cover that was most likely used to protect the bolt heads, as it was absent on the new differential.