I pod touch 5th GEN

Question

I've recently purchased an I pod touch 5th Gen and I re-set it because the previous owner forgot to and I forgot to turn the find my phone off so it required me to activate it, I have the previous owners apple ID and password and they are both correct because I used it to access his Icloud account. However it would not let me activate the Ipod it keeps saying something like "you can't use that email to activate this device" But i know it's the right apple ID because he sent me a photocopy of his invoice from apple when he purchased it in store and last night I went onto his Icloud account and removed the device from "find my phone" in hope that the activation ID would no longer be required but it still is and his ID still wont work. I don't understand why it wont activate because its the e-mail address he gave apple when he purchased it in store so how can it be linked to another account? I'm out of ideas what to do, any suggestions?
Regards
Tom
P.S. Please don't leave remarks about how you shouldn't buy second hand or it might be stolen or any useless information like this thanks.

Answer 1

Try getting the previous owner to to delete the iPod from their account by:
Find My iPhone Activation Lock: Removing a device from a previous owner’s account
If you can't get that done and yo can't enter the Apple ID and password then return the iPod for a refund. Otherwise you will have an expensive, flat brick
Y may also what to contact the police since y yumay have a stolen or lost iPod