No feedback and worst customer service

I have app**** for PR in July 2015 in VFS, Pretoria Office and got outcome in Feb 2016. “Adjudicated Application for BIJENDRA SINGH has been received at Visa Facilitation Centre on 15-Feb-2016.and is ready for collection” But when I went for collection, VFS told me that there are some mistakes in my PR letter so they sent it back to Home Affairs for correction and I must come after a month. I went again in end of March and VFS told me that they are still waiting. I went again in end of April 2016 and I checked online it shows below status – “Adjudicated Application for BIJENDRA SINGH has been received at Visa Facilitation Centre on 21-Apr-2016.and is ready for collection” I was happy that this time I will get it. But VFS told me that they are still waiting and I asked them how date in my status is changed and they said it is technical error. It is really frustrating to going VFS, Pretoria for just status. I also called to call center couple of times and they are useless for me. I also sent lot of emails to *** but they just reply “We have already forwarded your email to our concerned department and we will get back to you as soon as possible.” And they came back to me. I request you to please help me. Thanks, Bijendra Singh Rajput *** ***