I booked flights for myself and my husband 2 weeks ago for October. Since Delta was significantly higher, I booked through KLM (all Delta metal) after calling Delta. Both my husband and I now have un-used e-tickets in our skymiles wallet for the exact amount of what we paid for the KLM ticket. I called Delta yesterday and the agent couldn't see this unused e-ticket but she saw the flight and all looks good. Has this happened to anyone before? Should I wait until after our trip in October and then try to use it?