Any way to get in touch with Tokyo gas customer service other than calling or mailing ?

EDIT: The issue has been resolved, see my latest comment. This post can be locked.

The title may not make much sense, but I'm losing my mind over here.

I will be leaving the country temporarily for few months in a few days and I need to inform them that I won't be able to pay the bills until I arrive and would like to request them to pay everything all at once, after I arrive.

I can't seem to get in touch with Tokyo Gas customer care over phone. I'm always put in a "please wait" indefinitely (I waited up to 15min yet no response multiple times. This is during 10:00am – 12:00pm, yesterday and today included). I'm racking up my phone bill unnecessarily and this is making me crazy.

I tried contacting them in the following numbers:

  • 03-6838-9020 (Source)
  • 03-6838-9002 (I used this number previously since 2023)

Is there any way to personally visit their customer office or something to get this sorted out ?

And same for Tokyo Water company as well. I can't seem to get in touch with them over phone as well (Phone Number Source).

Thank you in advance.

by ddripper