PayPal Staff IOS Engineer interview questions

I was referred to Paypal by a friend. The HR send an email for completing the profile. I did that. Then i got email about Karat online interview. I attended the interview and got a positive response after following up with the HR over email multiple times. After that i had to send multiple emails to the HR for setting up next round of interviews. I got a response from HR after around 20 days that the position went on hold. Thats fine but i am kept seeing new job postings by Paypal for Staff Engineer - iOS posts on Linkedin. Just a question to Paypal, If the openings are on hold then why posting fake job openings? Why does the HR not bothered to give a call instead of sending emails. I still don't have any other contact of the HR except her email id and she doesn't bother to give any call or reply to emails.