It looks like it would be possible to send the membership application form several times within a very short time. I noticed this especially during the new year and shortly before Christmas. Sample DONATIONS files (with timestamp):
- 20200107 06.01.2020 16:30:10
- 20200105 04.01.2020 12:54:54
- 20200102 01.01.2020 12:55:45
- 20191221 20.12.2019 01:42:10 (5min in between)
- 20191220 19.12.2019 02:38:06
- 20191217 16.12.2019 18:20:02
Basically there is no problem, because VEWA *does not* import duplicate memberships. However, we should not rely on VEWA doing everything right, with bugs that are actually on our side. So it would be great if you could take a closer look at it for the next campaign.