transfer of refunds after cancellation

i cancel my medical aid with bonitas on 13/02/2015 and on the 28/02/2015 i received confirmation that my membership has been cancelled. i had money on my savings account, which i called them and ask them what will happen to my savings and was told by the agents that it will be paid on the 1st of July 2015, called in July i was told to wait up until they send me correspondence and every month i receive statement in regard with my saving. on 03/08/2015 i received another statement and i called them and told them 4 months is over and would like to receive my refunds and i received an email with application form to be filled in. i filled in the application form and attached documents requested which was copy of identity and bank statement and email it to [Email Removed] - this morning i received email from bonitas which was sent Thu 8/13/2015 11:19 PM which requested that i email a stamp bank statement, what is going on, they received a bank statement which i downloaded from online banking and i called them and they said that they are not willing to assist, while i was with them i used the same statements for my claims refunds from claims was paid using the same process.