If he has a job, just go to his job and pretend that he called you to give you back your ipad infront of every one."hi I just come to pick up my ipad, thank you

If he has a job, just go to his job and pretend that he called you to give you back your ipad infront of every one."hi I just come to pick up my ipad, thank you for calling me" I don't think he can negate it if you bring the bill and make use of the Tracking software. If he doen't comply then just tell his boss.