It depends, if it's a clear-cut case, then in jurisdictions with a functioning legal system it can be feasible to sue.
Likewise, if it's a fuckup that just needs to be put in front of someone who cares, a lawsuit is actually a surprisingly effective way of doing that. This moves your problem from "annoying customer support interaction that's best dealt with by stonewalling" into "legal says we HAVE to fix this".
It depends, if it's a clear-cut case, then in jurisdictions with a functioning legal system it can be feasible to sue.
Likewise, if it's a fuckup that just needs to be put in front of someone who cares, a lawsuit is actually a surprisingly effective way of doing that. This moves your problem from "annoying customer support interaction that's best dealt with by stonewalling" into "legal says we HAVE to fix this".