Had the same exact issue. The card kept springing back out and wouldn't sit in the slot. I returned mine to the dealer I bought from and got a replacement.
You need to get on them, I've had one drone shipped to me by them, it broke so I returned it, and I already have my other one. I pitched a fit with Becca and I guess she got tired of me.
Has anyone wrapped their P3 yet? I havent been able to locate many wraps so far, and I didnt know if the wrap would mess with any reception or anything like that. Thanks in advance.