69 Pa. Stat. § 1604
After the payment of all sums for which the buyer is obligated under a contract and upon demand made by the buyer, the holder shall deliver, or mail to the buyer at his last known address, such one or more good and sufficient instruments as may be necessary to acknowledge payment in full and to release all security in the goods under such contract.
A seller or holder shall not, in the course of collecting an obligation pursuant to this act, communicate or threaten to communicate with the buyer's employer or any agent of the employer (other than to verify employment or to leave a message for the buyer to return a telephone call), or any other person not liable for the obligation other than the buyer's spouse, an adult member of the buyer's household or the attorney of the buyer, except to acquire location information with regard to the buyer from such person (without disclosing the fact of the obligation) or as permitted by order of a court or as reasonably necessary to effectuate a post-judgment judicial remedy.
69 P.S. § 1604