Lack of assistance to resolve debit order query

I joined PF in February 2015 and I agreed to a monthly payment by debit order.In July 2015,a double debit order payment came off whereby I confirmed with my bank of a double deduction-one payment was duly reversed.I then received an SMS from PF informing me that my PF membership fees were in arrears.I then queried this with PF whose representative explained that this is an annual levy which was deducted and I was supposed to be informed of this at the time of registration which did not happen.I then settled this arrear amount at the PF premises(receipt number:***