We've definitely not removed it. Claiming by SO is the preferred way. I've claimed some SOs recently, but maybe more than 1 week ago. Just to make sure, you didn't previously claim any of the serials or license key contained within the SO number correct? Because that does not work as it causes an overlap and won't take.
Thanks for the prompt reply. They have never been previously claimed. I've been trying to claim 4 different orders in the last few days and all of them fail. Used to work last week. I'll see if TAC get back to me.
I experienced a couple of times an order of Meraki gear dropping in on several Meraki Order numbers. One Meraki Order number only contained cables etc, and wouldn't claim (since there was nothing to "claim").
I'd doublecheck the shipping label with what devices thave been shipped with the Meraki Order number. If there is something to claim, the Order no should work.