Stalingrad: At what point did the soldiers know that Wintergewitter had failed and no help would be expected?

The WinterGewitter/Storm operation failed as we know (came within 48 Kilometres). However apart from Paulus did the lower ranks know that no more help would be coming or were they kept believing that help would come and was on the way?

Keep up the great work and don’t upset Chewiekov :wink: (can’t resist, sorry) !

Please only post one (1) question in a topic post - you can post multiple questions, just please keep them separate.