Two suppliers, both of which requested not to be named, cited late or unpaid bills as the root cause of the problem, deepening speculation the discounter is on the verge of collapse.
Last week we revealed how one desperate store manager had contacted us to say staples such as bread and sugar had been unavailable in his store since December. Bread suppliers Warburtons and British Bakeries were refusing to deliver, he claimed.
This week we heard from a second store manager, who said: "I can confirm most stores are in the same situation. We currently have hardly any canned vegetables, fruits or meats on display, while petfood is nearly non-existent."
He also claimed he knew of some stores in Kwik Save's 229-strong estate that had been "visited by bailiffs for non payment of rent".
Kwik Save itself refused to comment.
"This is clearly an exceptionally worrying time for Kwik Save," said Clive Black, analyst at Shore Capital.
"It's a business that could clearly go under, and I don't think there is much of an appetite out there to save the chain."