Bond moved to different financial institution

I received recently a letter from FNB homeloans, to informed that my current bond will be moved to another company since the remainder outstanding amount in very small. I'm not satisfied with the approach cause I was not properly informed why and what will be the implications of such change. As client over 20 years it is not acceptable to recieve such email. I responded to requested an explanation but thus far nothing has come through. The account that I made payment is been closed and now I have no other option to make payments to the said account. I would appreciate better service and response from FNB homeloans. Furthermore Fnb homeloans is so impersonal concept there is no office or face to speak to and that make it more scary.

I trust to hear from Fnb homeloans, since it due date for payment.