No credit card pin after a week of waiting for a "48 hour" turnaround time.

I accidentally blocked my new credit card as I kept using my old card's pin by accident. The call center (which drops about 4/5 of my phone calls) logged the issue and said someone would get back to me with a new pin within 48 hours. 48 hours passed and no phone call. Called them again and was told it's 48 hours from the day after my call, they would contact me by that afternoon. Logged a complaint on FNB website as nobody had contacted me. Complaints department called me eventually and said they would escalate and I would be contacted by the PINs department within 24 hours and that they would also call me again. Nothing since. 7 days now and unable to use my credit card.