If you want to contact the DWP about anything other than a new claim for UC then I wouldn't bother.

As predicted the system is in meltdown with almost 1/2 million new claims and:

“We made a decision that managing claims and making payments is a number one priority for DWP. Operationally we can deprioritise other things,”

https://www.theguardian.com/world/20...t-in-nine-days