I have been very reluctant to give away indiegala keys for quite some time now as they seem to be involved in a lot of key invalidation. But as most of the time only unused keys get invalidated, I finally figured that I should give them away as long as they might work.
That said: If a key doesn't work, I won't provide replacement. I will be happy if you agree to delete the GA in that case, but if you don't you can always mark as not received.

My last month's indiegala GAs seem to have worked fine, I hope it will go on well.