Wells Fargo Mortgage Misrepresentated refinance to lower interest which would lower payment, to up pmi insurance Lancaster, California

Wells Fargo Mortgage enticed (they did the soliciting) me to refinance to a lower rate on my home mortgage, which would supposedly lower my payment. Instead WFM used the refinance as a reason to up my PMI cost of the mortgage. 
This tactic actually upped my payment by 100.00 dollars a year later. I was made to believe the payment was lowered when I refinanced (per documents). What I believed WFM did was hide the cost of PMI until a later date when escrow accounts per depleted and I needed to pay more every month because PMI policy increases in escrow accounts (payments to WFM) was not included in my documents on the date of refinancing.
I believe this was a predatory practice of getting consumers to refinance and not telling the actual cost of the new loan. The upping of PMI is a direct shift of cost to the consumer from WFM, that benefits Wells Fargo Mortgage.