@Calvertelaine You should always keep tracking numbers for at least 6 months as buyers have up to that long to open disputes. An unauthorised transaction means that an account holders Paypal account was hacked and used without their consent by your ?buyer. If Paypal check IP addresses etc and find in favour of the account holder then of course they are reimbursed. However you would not lose out either as long as you met ALL the requirements of seller protection, but seller protection includes providing a tracking number that proves delivery of the item to the buyers paypal registered address at the time of payment.
... View more