they keep adding arreas to my mothers account but we settled it and never signed for a phone insurrance they say we signed

Hello Peter good evening am writing cause I need assistance with an issue my mother is encountering with Jet store she has an account with them she was owing them we payed them the balance we were owing them to only find out they have been putting the account on erreas when we went to inquire before lock down they told us my mom took a phone insurance which she didn't so I wanted you to help because this is day light ******* cause my mom Is a pensioner and is tired fighting this