Meaning of 'Past Due Accounts'?

[Galilom2002]

Call us at any time to arrange a payment plan if your account is past due. You can also inquire about the Level Payment Plan, which allows you to pay a similar amount each month based on your projected use.

Please help me with the meaning of the bold sentence in the above paragraph.

Many thanks!

[Beeesneees]

It's not written very well, but personally I would interpret that as meaning '... if your account is in arrears'.
'Past due' appears to mean 'due at some time in the past' - so it is saying that if you were due to have made a payment in the past which you did not make (so your account is not up to date) then you should call them.
_________________
"Inside every old person is a young person wondering what happened."
Terry Pratchett

[Galilom2002]

If extreme heat poses a health risk for anyone in your home and your living space must be kept at a constant temperature, sign up for advance notification phone calls about state-directed rotating outages from the Temperature Sensitive program.

Thanks BN, would you please explain me the meaning of 'state-directed' in the above sentence.

[Beeesneees]

Presumably, about any power outages planned in advance by the company. Again, it's poorly written and that is just an educated guess based on inference.
_________________
"Inside every old person is a young person wondering what happened."
Terry Pratchett

[Galilom2002]

Another question, please help with the meaning of the phrase 'come mark range dials' in the sentence shown below, thank you so much!
For customers with limited vision, an SDG&E service technician can come mark range dials and thermostats to make them easier to use.

[Beeesneees]

I presume that should be 'can come to your home/workplace and mark the correct range on the dials and thermostats'.
_________________
"Inside every old person is a young person wondering what happened."
Terry Pratchett