never seen such *********** personnel in one offic

we went to send a fax (cannot believe people actually still uses faxes). This Postnet was busy and we arranged to leave our fax with them to send and will pick it up again later with the confirmation attached. Logic? when we went back the lady working there had torn up our fax of 16 pages after it was faxed. why? we had to wait for the confirmation to be printed again so we at least had proof that it was faxed. The fax was busy so we arranged to be back after 15 minutes to pick up the confirmation slip. when we got back to Postnet, the lady torn this up too? how is it possible to be so ***********, or is she just very stupid?