Savings owing to a deceased member

Bonita's sent 2 letters to me in October 2017 and November 2017 that the savings monies must be paid over that's in the account of the decease Bonita's Savings Account which was never used. They requested that i sent banking details and documents in order for them to pay over the monies. I done all that,went to bank to get copies etc etc., I only responded this year as i am still in mourning and had put that aside until I was able o deal with it. They NOW sent me email that there is NO monies which I refuse to accept! No one gave them permission to use the savings in the account.When my mothers medicines were exhausted I PAID CASH for medicines at the pharmacy..... The member is T L Quickfall 94540. I have sent them numerous emails to their various departments but they are IGNORING me! They have to pay the monies over as i refuse to believe that there is no monies to be paid over. My mother passed away on the 29th June 2017 and Bonitas sent me TWO letters in October 2017 and November 2017 stating that there is MONIES lying in the savings that must be paid over..... Now that I responded in January 2018 they claim there is NO money!