So a customer of ours contacted us with proof (bank statement) of a double charge from OpenRent. We couldn't find anything in our system other than the original charge, and the Stripe system also stated only a single charge.
I reached out to Stripe customer support, who admitted they had made a processing error (5 days earlier) and were reversing transactions. I'm disappointed a customer had to alert us to this, not Stripe, and hence I'm sharing this with the community directly as clearly Stripe aren't notifying affected customers directly.
From the OpenRent transactions I think were affected, it seems all payments between at least the following times on the 9th September were affected:
From: 2015/09/09 12:13:58 BST (UTC+1)
To: 2015/09/09 18:08:20 BST (UTC+1)
Note - Stripe are not reaching out to customers to offer help / guidance, but customers are seeing double charges on their bank statements, so you should be pro-active and contact Stripe to see how you were affected. We've already had customers claiming we are being "sneaky" and trying to double charge them, don't let this impact your brand too!