Windhoek residents will have to come up with funds, and urgently so, or face water and electricity disconnection.
Some elderly residents NBC News spoke to expressed concern.
Sixty-eight-year-old Anna Doeses relies almost entirely on her pension grant.
Her bill at the City stands at a staggering N$120,000.
For the pensioner, the N$1,600 monthly grant is not enough to meet her municipal obligations.
She said previous promises made by politicians included that outstanding debt for the elderly would be written off.Β
However, she is now forced to use part of her pension to pay for water and electricity while still supporting other dependents.
"I am forced to pay N$1,000 to pay for my water and electricity."Β
Another resident, Anna Isaacks, also pleaded with the Municipality not to disconnect their water and electricity.
"We have nothing to pay with, so do not cut it."
Activist Shaun Gariseb has been vocal regarding the high debts owed by residents, attributing the accumulation of debts to the City's billing system.
"Instead of dealing with what has caused high debts and finding ways to address people's ability to pay on time, the City is just concerned with making money from people. And, like we said last month, we are going to boycott paying the City of Windhoek."
NBC News contacted the City' Spokesperson Lydia Amutenya, to establish how much residents owe and the decision for mass disconnection of services.Β
While confirming the authenticity of the disconnection notice, Amutenya, however, did not respond as to how much residents owe.
She added that the notice was internal, and a corrected version will be shared once ready.