If thats the only thing they want just get a tracking number when you ship it and input it, you might have to wait for it to be delivered for them to approve it...I don't think entering a "⊗⊗⊗⊗" number would work...
i would ship the item and use the fastest way possible. overnight or something, and give the tracking number to paypal. then keep track of the package and as soon as it is delivered call paypal and ask them to put the account into review because the package has been delivered. don't expect to get a quick response though, and don't expect for these to be the only things they will ask for. you will most likely get an email that says upon further review your account can not be reinstated at this time. we need more info. so you have to continue to jump through hoops.
Well you don't have a strict time limit on entering the tracking number, so you can either send the item, and enter the tracking number, or send an empty box, and give paypal that tracking number.
I had this, and I entered all of the tracking numbers...paypal then unlimited my account.