Trending @Accenture; Didn’t receive service letter/ relieving letter from TCS

It’s been 60 days since I left TCS but I haven’t yet received my service and relieving letter. My FFS is done and I raised the ticket and they closed it saying it’s been pending with IS clearances. But Infact i submitted everything to them on my LWD. My separation HR isnt responding. And my BGC is on hold in my current organisation due to this. Will there be any problem here in Accenture if it gets delayed? Can anyone suggest what to do? Cuz I need those documents on priority.