paypal has to honor the rights holder laws, and the law states that DMCAs have to be properly written.

"please remove these files because I dont like them" is not a DMCA takedown

Code: 
GOOGLE: HOW TO WRITE DMCA
if your sister wrote a song and someone uploaded it and you wanted to take it down, your sister has to do it, you cannot act upon anyone else's behalf and report files.

If you do not write a correct takedown they should not remove your files.