Montag sparked rumours her marriage to Pratt was in jeopardy after revealing she was no longer managed by her partner and had signed her psychic healer, Aiden Chase, as her full-time rep.
The star has worked with Chase since undergoing a staggering ten cosmetic surgeries in 24 hours.
But things have already soured between the pair, with Montag announcing she has parted company from Chase following his “behaviour” on the set of her new movie Just Go With It.
She tells People.com, “I have decided to part ways with Mr. Chase both as a manager and as a psychic and will scrutinise my business decisions more carefully in the future. I will now be managing my own career as a strong and independent woman.
“Unfortunately recent behaviour by Mr. Chase on (the) set of both Just Go With It starring Adam Sandler, Jennifer Aniston and Nicole Kidman and The Hills have made me question this decision.”
However, Chase insists he hasn’t been notified of his behaviour or his dismissal – and denies he tried to poach Montag’s The Hills co-star Audrina Patridge as a client.
He adds, “At this time, I am not aware of any change in my business relationship with Heidi Montag… Heidi invited me to the set of Just Go With It and the terms of our financial agreement are in line with standard manager/talent agreements. I spoke with Audrina Patridge briefly when I was on the set of The Hills with Heidi recently, but never discussed being her manager.”