I had been using the old paid version of Membership for 1 year, and when we updated WordPress to 3.5 the old version of Membership broke my site. So, it was necessary to get the new version of Membership, so I paid the $19 to update the plugin.
When we updated the plugin, some settings were lost, and we found out that the negative page rules didn't work (it was suggested in WPMUDev's support forums that we just use positive rules instead). After much time, we had the settings in place, but the performance was still wonky, and some rules were not being enforced.
After trying the several suggestions (pretty prompt replies) from WPMUDev, we gave up on Membership and decided to pay $69 for s2Member instead. We set it up super easily the first time, and it's working great! Way easier to use than membership (it seems like the plugin owners pay attention to it more), and there are lots of Payment integration options of we decide to go that route in the future.
So I asked WPMUDev for a refund, but sadly couldn't get one. Not too big a deal, but a little annoying to lose $19 and hours of time because their old plugin broke when I updated to WordPress 3.5. Oh well!
Here is WPMU Dev's response about a refund:
Thanks for getting back in touch.
WPMU DEV offer a support and updates guarantee, this isn't however a 30 day or satisfaction guarantee to download and trial our plugins and themes as noted clearly form our Our Upgrade and Support Guarantee and our Terms Of Service:
As with many companies like Amazon, Wallmart, Paypal and eBay no refunds are offered on digital downloads, software and services. This is to counter software piracy and theft which is a serious matter.
Paypal currently process all of our transactions, as you can see from their terms of service no refunds are given for digital items and services:
Items are eligible unless they are excluded below:
Real estate, motor vehicles, capital equipment, travel tickets, and events tickets
Items purchased using PayPal Payments Pro or Virtual Terminal
You may not file a dispute for a Personal Payment
Of course we would love to work with you on any issues you have in using our products and services. A support ticket can be opened here: