I sold a house through a real estate agency and th...

I sold a house through a real estate agency and the buyer's financial institution worked with this agency. They made me a provision of funds for the cancellation of the mortgage of approximately double what is usual according to what the real estate agent told me. In a process that should take 3 months, I have been almost 9, and each time I write to ask how it is going, they tell me a different milonga. Avoid this company at all costs, they are unpresentable