Escrow Loan

Escrow payments was set up in my loan contract, mortgage company can change the amount required to pay?
Can they increase my escrow payments and without prior notice?
Yes, but only if the mortgage company originally miscalculated (which is often the case when it comes to taxes). Your lender will review your account once a year to make adjustments because certain elements change over time (the price of your home owners insurance, taxes because the value of your house has increased). Normally they give you one month's notice.