I have had an annual subscription for many years and have never received an invoice via email. Regardless, similar to all other services, invoices should be readily provided by whatever means the user chooses: email, text, fax (!), USPS, FedEx, UPS, rocketship (?). So many options. We're only asking for one: email.
Dropbox just proved that it can indeed send emails! It instantly sent me a security code via email to access this forum, and in the brief time I was drafting my comment it sent me an email promoting me to Explorer | Level 3! Cool!
Suggestion: put the human in charge of those emails on the task of enabling emailing invoices!
We pay hundreds of suppliers every month. We cannot afford to log in to every single supplier's website, find the billing tab, and download the bill every month. Please. Save tens of thousands of man-hours for humanity and send the bill via email.
This issue reminds me every month that I should migrate away from Dropbox, as I truly hate such anti-consumer practices trying to get us signed up annually.
Your client software is great but it's replaceable by any other storage solution. Next time I need to reorganize the file storage system for my organization I'll consider moving away.
"At the moment, only annual subscriptions will receive the an email receipt after each payment."
This is not true. Please update the "Latest update" since it can deceive customers into getting an annual subscription.
I've been an annual subscriber for a few years and there is not a single receipt of payment in my inbox, I just double checked (an email saying my subscription is about to renew perhaps, yes, but not a receipt ).