Here's what they came back with:
I do apologize for the trouble and the wait while we investigated your account. The survey company is not able to find a record of your successfully completed survey. The survey company is not able to credit for surveys that are not accounted for in their records. I do apologize for the trouble.
Thank you again for contacting the Swag Bucks support team. If you have any further questions or concerns please let us know.I have a further question.... What? So a survey company can just deny having a record, despite the fact I have proof of completion, and that's it? Useless from Swagbucks. I feel that they themselves should at least compensate me. The survey took 30 minutes to complete and although it's not a great deal of money in the scheme of things, it's a matter of principle that a survey company can get away with it.