Hello,
If you will follow the DMCA steps that are outlined in US law the files would have been removed already, see 17 U.S.C. 512(c)(3). It is you who is delaying the process.
The steps for the complete DMCA is listed below for your reference.
All notices should comply with the notification requirements of the DMCA. You MUST provide the complete set of information below. Once your request is submitted with the proper information we will process it in a timely fashion.
1. Identify yourself as either: a) The owner of a copyrighted work(s), or b) A person "authorized to act on behalf of the owner of an exclusive right that is allegedly infringed."
2. Identify the copyrighted work claimed to have been infringed
3. Identify the material that is claimed to be infringing or to be the subject of the infringing activity and that is to be removed or access to which is to be disabled, as well as information reasonably sufficient to permit MediaFire to locate the material
4. Provide contact information that is reasonably sufficient to permit us to contact you, such as an address, telephone number, and a valid electronic mail address.
5. State that you have a good faith belief that use of the material in the manner complained of is not authorized by the copyright owner, its agents, or the law.
6. State that the information in the notification is accurate, and under penalty of perjury, that the complaining party is authorized to act on behalf of the owner of an exclusive right that is allegedly infringed.
A proper notification MUST contain the information above, or it may be IGNORED. (For more details on the information required for valid notification, see 17 U.S.C. 512(c)(3).)