Allow for a secondary form of payment in Azure
Let your customers setup a secondary form of payment in case there is a problem (like reaching a credit limit) with the primary payment form. We almost had our services shut down because my company credit card (used for paying for Azure) reached a credit limit. Wouldn't it be logical to allow for a second credit card in case the first had a problem? That way YOU would get your money and WE wouldn't be shut off.