Those rechargeable ones just aren't built like the old standby models anymore...

Did you see that Consumer Reports piece about credit union customer service beating big banks for like the 10th year in a row? That's kind of what I thought of reading this. The wait sounds brutal, honestly, but it seems like you got the human touch that a big bank just won't give you, you know? I've heard of people having this exact issue with routing numbers at credit unions, especially the smaller ones that use third party processors. Six weeks is still a long time, but if that teller is going to be there for every future problem, that might be worth more in the long run than a fast transfer.

Gonna play devil's advocate here but maybe the issue wasnt the chemical itself, maybe it was how it was applied or what the flue was made of. Heavy buildup can also mean the sweep was skipped way too long, no product fixes that overnight.