Can debt collectors collect telus late fees

[Infiniteissues]

Hi, I have an old home services account that went into collections awhile ago, I'd like to pay it off as the original balance was only like $400, however it has ballooned into over 3 grand. I know debt collectors in canada can't collect interest, so I am wondering if TELUS has interest using late fees and this is what they are using to accrue the interest on the debt

[TELUS_Support]

That is all handled and accrued through the agency itself, not TELUS. Any inquiries you have about that would be best answered by the agency directly.