terrible service

i cancelled my car insurance last year and was billed for "arrears", this was eventually debit from my account on January 2019 , and to date i am still waiting on discovery to provide me with some sort of paid up letter to confirm its been received and settled. I drew a credit report recently and saw this is still reflecting negatively on my report.... yet there's no sense of urgency from there side, they don't seem to care about the effects. they just do not care, I have so many reference numbers for the countless queries emails and calls ive made but to no avail. all ref no: ********** 606, ********** 635 , ********** 010, ********** 317, ********** 289. Service is terrible, so glad i ended up taking my business elsewhere.